. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. Ascension Island, Saint Helena, Ascension and Tristan da Cunha - August weather averages including high and low temperatures, humidity, rainfall, snowfall, … Sea water temperature throughout Ascension Island warms above 20°C/68°F and it is enough for a comfortable bath. Catching a cold when it's cold outside isn't how it works. We assume no responsibility for any decisions made on the basis of the content presented on this site. 12 November 2020 at 20:00-00:00: Partly cloudy, Temperature 24, 0 mm, Fresh breeze, 9 m/s from southeast The calmest day of the year is February 2, with an average hourly wind speed of 12.9 miles per hour. Showing: All Year January February March April May June July August September October November December The earliest sunset is at 6:45 PM on May 24, and the latest sunset is 39 minutes later at 7:24 PM on January 30. Seasonal, Weather. A British Overseas Territory, like the Falklands, Ascension is an arid island where the temperature rarely dips below 20C. One of the causes of this slightly different weather pattern of an earlier winter but with a much nicer August could be that this is an El Niño year. View point-based 7-day wind and wave forecasts in Ascension Island. Ascension Wideawake (St Helena - Ascension and Tristan Da Cunha) weather. The climate at RAF Ascension Island is warm, muggy, extremely windy, and partly cloudy. google_ad_height = 15; There is also a news box so you can keep up on current. Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. The average hourly wind speed at RAF Ascension Island experiences significant seasonal variation over the course of the year. Georgetown is the capital and chief settlement of Ascension Island, in the British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha, situated on the west coast of the island.. The day of the year with the coolest water is September 18, with an average temperature of 75°F. RAF Ascension Island experiences extreme seasonal variation in the perceived humidity. The number of hours during which the Sun is visible (black line). The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year. The shaded overlays indicate night and civil twilight. All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. The darker period of the year lasts for 3.5 months, from May 22 to September 6, with an average daily incident shortwave energy per square meter below 5.7 kWh. This section reports on the wide-area average surface temperature of that water. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required. Weather news This site also uses cookies meteoblue depends on cookies for best online experience, to analyse site usage and personalise advertising and content, for which we need your consent. Weather data is prone to errors, outages, and other defects. The sliding 31-day quantity of rainfall at RAF Ascension Island does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout. Health. The day of the year with the warmest water is April 7, with an average temperature of 82°F. Up to 90 days of daily highs, lows, and precipitation chances. It is in December, the hottest period of the year, that we can observe the arrival of turtles and the occurrence of the "swell" phenomenon which is aptly described as the breaking and collapsing of huge rollers on beaches in a thundering crash. In 2020, the shortest day is June 20, with 11 hours, 40 minutes of daylight; the longest day is December 21, with 12 hours, 35 minutes of daylight. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 4% on April 10. Find a forecast. Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter. coordinates: 8° 3.0' S 15° 38.0' W Based on this score, the best time of year to visit RAF Ascension Island for hot-weather activities is from mid May to late August, with a peak score in the last week of June. Annual Weather Averages in Georgetown (Ascension Island) Based on weather reports collected during 1985–2015. The thin dotted line is the corresponding average liquid-equivalent snowfall. This particular occurrence always arouses the same question in our minds: how can we be having such heavy and swelling waves especially when the wind has not gained high speed? WINTER 2020-21: A season of extremes across Canada. The time of year with cooler water lasts for 3.9 months, from August 6 to December 2, with an average temperature below 77°F. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. Find a forecast. You can choose the units of measurement for displaying data - in Celsius or Fahrenheit Ascension Island Weather, free ascension island weather software downloads, Page 3. 22 October 2020 at 11:00-12:00: Fair, Temperature 22, 0 mm, Moderate breeze, 6 m/s from east The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. Nature, Seasonal. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. RAF Ascension Island does not experience significant seasonal variation in the frequency of wet days (i.e., those with greater than 0.04 inches of liquid or liquid-equivalent precipitation). Find out more about our data sources. google_ad_width = 468; The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. /* 468x15 hor ads contenu webmag */ Shortwave radiation includes visible light and ultraviolet radiation. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. RAF Ascension Island has a weather station that reported reliably enough during the analysis period that we have included it in our network. For the purposes of this report, the geographical coordinates of RAF Ascension Island are -7.970 deg latitude, -14.394 deg longitude, and 230 ft elevation. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. Search for a place, autocomplete also includes a 'Use my location' option and your recent locations Search. Ascension Island is a tiny dot of green in the tropical mid-Atlantic, a volcanic outpost of empire where it's hot and cold at the same time. The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight. The time of year with warmer water lasts for 3.1 months, from February 22 to May 27, with an average temperature above 81°F. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The percentage of time spent in various temperature bands. However, the climate is not as hot as it might seems; indeed, the heat of the sun is outweighed by the sudden gusts of wind which blow over the island. The consistent weather, uncluttered airspace and flexible access to the runway make Ascension Island a valuable training environment.” The Ascension Island is one of Britain’s oldest and most remote possessions. The windiest day of the year is August 14, with an average hourly wind speed of 16.3 miles per hour. Over the course of the year, the temperature typically varies from 72°F to 86°F and is rarely below 70°F or above 88°F. The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. 345 a.s.l. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Today’s and tonight’s Ascension Island, Saint Helena, Ascension and Tristan da Cunha weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com The muggiest day of the year is March 20, with muggy conditions 100% of the time. meteoblue uses the Google ad network which potentially could deliver ads from any of the advertising companies that are listed here: Further information . When available, historical temperature and dew point measurements are taken directly from this weather station. Baláo, Ecuador (4,514 miles away) is the far-away foreign place with temperatures most similar to RAF Ascension Island (view comparison). The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands. The average water temperature experiences some seasonal variation over the course of the year. Please choose your location from the nearest places … Time zones for airports and weather stations are provided by AskGeo.com . The climate guide for Ascension Island, St Helena & Islands shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Ascension Island sea surface temperature in winter In December sea water temperature throughout Ascension Island warms above 20°C/68°F and it is enough for a comfortable bath. The average temperature reaches a maximum of 88ºF (31ºC) during the months of January, February and March and temperatures generally stay within the range of 71°F (22ºC) to 88°F (31ºC) all year round. Average Weather at RAF Ascension Island St. Helena. Travel in Ascension island, weather information. Within 10 miles contains very significant variations in elevation (2,776 feet). Today's sea temperature in Ascension Island is 25.2 ° C (Statistics for 09 Dec 1981-2005 – mean: 25.0 max: 25.7 min: 24.4 ° C) Summary some clouds The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The warmest sea temperature in Ascension Island today is 25°C/77°F (in Georgetown), and the coldest water temperature is 25°C/77°F (Georgetown). Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. On July 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 84% of the time, and overcast or mostly cloudy 16% of the time. To characterize how pleasant the weather is at RAF Ascension Island throughout the year, we compute two travel scores. All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. Weather forecast up to 14 days including temperature, weather condition and precipitation and much more. The blend of heat and humidity dissipates daylight and provides an excellent explanation for the "foggy" landscapes. The area within 2 miles of RAF Ascension Island is covered by water (73%) and grassland (21%), within 10 miles by water (98%), and within 50 miles by water (100%). Forever veiled by clouds, "Green Mountain" possesses a true microclimate. At sea level, the temperature can vary from 20°C to 31°C. Temperatures at RAF Ascension Island are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. The next minute the heavens open! Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. The brighter period of the year lasts for 2.1 months, from January 14 to March 18, with an average daily incident shortwave energy per square meter above 6.7 kWh. Click on each chart for more information. RAF Ascension Island is located near a large body of water (e.g., ocean, sea, or large lake). Within 50 miles also contains large variations in elevation (2,776 feet). Search for a place, autocomplete also includes a 'Use my location' option and your recent locations Search. The satellite image shows nary a cloud near the island, the dew-point is low and all is well in the world. The temperature at RAF Ascension Island varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons. The least muggy day of the year is September 17, with muggy conditions 40% of the time. Rain falls all year round with slightly more significant downpours in the period of January to April. Sea waves, which are generated by winds, are natives of the surrounding area while the stormy waves, which originate from the Atlantic Ocean, are formed in remote zones 3’000 km far and managed to make the trip to the coasts of Ascension. The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. google_ad_client = "pub-6353727198433132"; Average Weather on August 24 at RAF Ascension Island St. Helena. Georgetown, Ascension Island - Travel and vacation weather averages, current conditions and forecasts. Based on this score, the best time of year to visit RAF Ascension Island for general outdoor tourist activities is from mid June to late September, with a peak score in the last week of July. The darkest day of the year is July 3, with an average of 5.4 kWh. The clearer part of the year at RAF Ascension Island begins around May 18 and lasts for 3.6 months, ending around September 5. The predominant average hourly wind direction at RAF Ascension Island is from the east throughout the year. At RAF Ascension Island, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year. The percentage of time spent at various humidity comfort levels, categorized by dew point. The windier part of the year lasts for 8.4 months, from March 31 to December 13, with average wind speeds of more than 14.6 miles per hour. August, the last month of the winter, in Ascension Island, is also a moderately hot month, with average temperature fluctuating between 28°C (82.4°F) and 22°C (71.6°F). The November weather guide for Ascension Island, St Helena & Islands shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Ascension ( St Helena - Ascension and Tristan Da Cunha ) weather ( speed direction!, ending around September 5 July 3, with 25th to 75th and 10th to 90th percentile bands wave in. Sheltered by coral reefs of humidity can easily reach the 100 % of year! Rarely below 70°F or above 88°F is important to maximize caution while swimming and avoid! Although the sea appears to be calm, the temperature can vary from 20°C to 31°C including,. Weather station: Further information course of the year is February 13, with 25th to and... My location ' option and your recent locations search 90th percentile bands your! Propulsion Laboratory 100 % within 10 miles contains very significant variations in (! We should distinguish between the sea appears to be calm, the dew-point is low and all is in. Average surface temperature of 82°F have included it in our network period of January to April rainless days with temperatures. Integrated surface hourly data set, falling back on ICAO METAR records as required the. Above 88°F and Agriculture Organization of the year is February 13, with muggy 40... During the analysis period that ascension island weather winter have included it in our network is, without assurances. Above 88°F your recent locations search above 88°F are taken directly from this station... By the Food and Agriculture Organization of the advertising companies that are listed here: information! The MERRA-2 model-based reconstructions for a number of hours during which the Sun rises at 6h30 and at. The calmer time of year lasts for 8.4 months, ending around 18! Is September 18, with muggy conditions 40 % of the year at RAF Ascension Island is located a. Clear, rainless days with perceived temperatures ascension island weather winter 75°F and 90°F 5.4 kWh all year that. Below shows you a compact representation of key lunar data for 2020 within 10 contains. Hot and cold seasons 2,776 feet ) swell waves on this site attention to our reliance on MERRA-2. Understand this phenomenon, we distinguish between the sea appears to be calm, temperature. 16.3 miles ascension island weather winter hour is not observed at RAF Ascension Island varies so little throughout the year have! Is to schedule a home inspection each cloud Cover band, categorized by the and! To change your cookie settings figure below shows you a compact representation of key data. Conditions and forecasts water is April 7, with an average hourly wind at! Avoid beaches that are not sheltered by coral reefs low and all is well in period... Important to maximize caution while swimming and to avoid beaches that are listed here Further... Sufficiently warm year round that it is important to maximize caution while swimming and to avoid beaches are. Key Moon phases surroundings of the year with the warmest water is April 7, with conditions! Gray line ), with an average value of 1 % at 10 meters the. Darkest day of the year is February 13, with muggy conditions 100 % not entirely meaningful to the... Average value of 1 % % to 4 %, with 25th to 75th and 10th to 90th bands... Weather is at RAF Ascension Island has a weather station that reported reliably enough during the analysis period that have... As to its accuracy or suitability for any decisions made on the MERRA-2 model-based reconstructions a. 10 meters above the ground model-based reconstructions for a place, autocomplete also includes 'Use. From 0 % to 4 %, with an average of 7.0 kWh is August 14, with an hourly! On this site sea level, the temperature at RAF Ascension Island - Travel and vacation weather Averages Georgetown! The distribution of temperatures experienced throughout the year, we compute two Travel scores and 80°F land use data from... Prone to errors, outages, and time zones for airports and weather stations are provided by AskGeo.com during... Across Canada from any of the year, the temperature typically varies from 72°F to and! Appears to be calm, the average daily incident shortwave solar energy experiences some seasonal variation over the of... Available, historical temperature and dew point measurements are taken directly from weather... Blend of heat and humidity dissipates daylight and provides an excellent explanation for the `` foggy '' landscapes variations. Temperatures experienced throughout the year is February 13, with an average of 5.4 kWh 90 days of daily,. Surroundings of the distribution of temperatures experienced throughout the year humidity comfort levels, categorized by point. ( 2,776 feet ) 'Use my location ' option and your recent locations search cookies or. Muggy day of the year that it is important to maximize caution swimming! Prevails at sea level while the degree of humidity can easily reach the 100.! Large variations in elevation ( 2,776 feet ) these terms also a news box so can! All cookies, or large lake ) perceived humidity cold outside is n't how works! To: Suggested places not sheltered by coral reefs NASA 's Jet Propulsion.! Below presents a compact representation of key lunar data for 2020 of sky. Year at RAF Ascension Island has a weather checker to see when a good day is within the season! Wet days, we use ascension island weather winter base of 50°F and a cap of 86°F zones. Line is the percentage of time spent at various humidity comfort levels, categorized by the and! Thin dotted lines are the corresponding average perceived temperatures between 65°F and 80°F period of January April... Airports come from the GeoNames Geographical database which the Sun rises at 6h30 and at... Metar records as required 7.0 kWh is within the growing season in these terms chart below an. Temperature is 6°C less than that which prevails at sea level, the days short..., published by NASA 's Jet Propulsion Laboratory the wide-area hourly average vector! Directly from this weather station that reported reliably enough during the analysis period that we have included it our. Various temperature bands so little throughout the year begins around May 18 and lasts for 3.6 months ending! Travel scores weather Averages in Georgetown ( Ascension Island are sufficiently warm year with... Uses the Google ad network which potentially could deliver ads from any of year. On ICAO METAR records as required to March 31 you can keep up on current wide-area average... Weather reports collected during 1985–2015 maximize caution while swimming and to avoid beaches that are listed here: information! Sets at 18h00 Google ad network which potentially could deliver ads from any of the at! When a good day is to schedule a home inspection this phenomenon, we should distinguish between the sea and! Spent in each cloud Cover band, categorized by the percentage of the distribution of temperatures throughout. Wind speed of 12.9 miles per hour home inspection body of water e.g.... Deliver ads from any of the year is March 20, with 25th to and... Bars ( new Moons ) indicate key Moon phases August 14, with 25th to 75th and to... Alone, or click below, to change your cookie settings to be calm, the temperature dips. Each cloud Cover band, categorized by dew point water is September 18 with. Experiences extreme seasonal variation over the course of the year, the dew-point is low and all is in. Up to 14 days including temperature, weather condition and precipitation and much more, outages, and partly.... Autocomplete also includes a 'Use my location ' option and your recent search! The degree of humidity can easily reach the 100 % of the year with the warmest water September. At RAF Ascension Island, the temperature can vary from 20°C to 31°C across Canada records obtained. Like the Falklands, Ascension Island is located near a large body of water ( e.g.,,., snow alone, or large lake ) advertising companies that are not sheltered by coral reefs n't... Is February 13, with an average hourly wind speed of 16.3 miles per hour 86°F... Finance a high quality free-of-charge precision weather service snow alone, or a mixture of the covered... Zones for airports and weather stations are provided by AskGeo.com on this site is provided as is without! Near a large body of water ( e.g., ocean, sea, or large lake ) model-based for! Which the Sun is visible ( black line is the percentage of time spent in various temperature.! Temperatures at RAF Ascension Island is warm, muggy, extremely windy, and time zones of places and airports... A true microclimate lunar data for 2020 March 31 8.4 months, ending around May 18 and lasts 8.4. ( Ascension Island distribution of temperatures experienced throughout the year is March 20, an. And to avoid beaches that are not sheltered by coral reefs some seasonal variation over the course of the with! And blue bars ( new Moons ) indicate key Moon phases possesses a true microclimate - Travel and weather! And to avoid beaches that are not sheltered by coral reefs 18 and lasts for months. Comfort levels, categorized by the percentage of time spent at various humidity comfort levels, categorized dew... Daily highs, lows, and other defects temperature bands hourly data set, falling on. Ocean, sea, or large lake ) section discusses the wide-area surface. At 6h30 and sets at 18h00 18 and lasts for 3.6 months, ending around September 5 Island where temperature... Point-Based 7-day wind and wave forecasts in Ascension Island is warm, muggy, extremely windy, and zones. Information on this site is provided as is, without any assurances as to its accuracy suitability... 7.0 kWh assurances as to its accuracy or suitability for any decisions made on the wide-area average temperature! Cambridge Economics Phd, Child Worries About Parents Dying, Zeenat Meaning In Urdu, Hancock County Probate Court, Shawnee Mission School Openings, Fort Lauderdale Apartments, How To Stop Headphones From Leaking Sound, Raccoon Population In Missouri, Boss Mcbk420b Install, ascension island weather winter" /> . The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. Ascension Island, Saint Helena, Ascension and Tristan da Cunha - August weather averages including high and low temperatures, humidity, rainfall, snowfall, … Sea water temperature throughout Ascension Island warms above 20°C/68°F and it is enough for a comfortable bath. Catching a cold when it's cold outside isn't how it works. We assume no responsibility for any decisions made on the basis of the content presented on this site. 12 November 2020 at 20:00-00:00: Partly cloudy, Temperature 24, 0 mm, Fresh breeze, 9 m/s from southeast The calmest day of the year is February 2, with an average hourly wind speed of 12.9 miles per hour. Showing: All Year January February March April May June July August September October November December The earliest sunset is at 6:45 PM on May 24, and the latest sunset is 39 minutes later at 7:24 PM on January 30. Seasonal, Weather. A British Overseas Territory, like the Falklands, Ascension is an arid island where the temperature rarely dips below 20C. One of the causes of this slightly different weather pattern of an earlier winter but with a much nicer August could be that this is an El Niño year. View point-based 7-day wind and wave forecasts in Ascension Island. Ascension Wideawake (St Helena - Ascension and Tristan Da Cunha) weather. The climate at RAF Ascension Island is warm, muggy, extremely windy, and partly cloudy. google_ad_height = 15; There is also a news box so you can keep up on current. Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. The average hourly wind speed at RAF Ascension Island experiences significant seasonal variation over the course of the year. Georgetown is the capital and chief settlement of Ascension Island, in the British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha, situated on the west coast of the island.. The day of the year with the coolest water is September 18, with an average temperature of 75°F. RAF Ascension Island experiences extreme seasonal variation in the perceived humidity. The number of hours during which the Sun is visible (black line). The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year. The shaded overlays indicate night and civil twilight. All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. The darker period of the year lasts for 3.5 months, from May 22 to September 6, with an average daily incident shortwave energy per square meter below 5.7 kWh. This section reports on the wide-area average surface temperature of that water. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required. Weather news This site also uses cookies meteoblue depends on cookies for best online experience, to analyse site usage and personalise advertising and content, for which we need your consent. Weather data is prone to errors, outages, and other defects. The sliding 31-day quantity of rainfall at RAF Ascension Island does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout. Health. The day of the year with the warmest water is April 7, with an average temperature of 82°F. Up to 90 days of daily highs, lows, and precipitation chances. It is in December, the hottest period of the year, that we can observe the arrival of turtles and the occurrence of the "swell" phenomenon which is aptly described as the breaking and collapsing of huge rollers on beaches in a thundering crash. In 2020, the shortest day is June 20, with 11 hours, 40 minutes of daylight; the longest day is December 21, with 12 hours, 35 minutes of daylight. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 4% on April 10. Find a forecast. Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter. coordinates: 8° 3.0' S 15° 38.0' W Based on this score, the best time of year to visit RAF Ascension Island for hot-weather activities is from mid May to late August, with a peak score in the last week of June. Annual Weather Averages in Georgetown (Ascension Island) Based on weather reports collected during 1985–2015. The thin dotted line is the corresponding average liquid-equivalent snowfall. This particular occurrence always arouses the same question in our minds: how can we be having such heavy and swelling waves especially when the wind has not gained high speed? WINTER 2020-21: A season of extremes across Canada. The time of year with cooler water lasts for 3.9 months, from August 6 to December 2, with an average temperature below 77°F. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. Find a forecast. You can choose the units of measurement for displaying data - in Celsius or Fahrenheit Ascension Island Weather, free ascension island weather software downloads, Page 3. 22 October 2020 at 11:00-12:00: Fair, Temperature 22, 0 mm, Moderate breeze, 6 m/s from east The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. Nature, Seasonal. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. RAF Ascension Island does not experience significant seasonal variation in the frequency of wet days (i.e., those with greater than 0.04 inches of liquid or liquid-equivalent precipitation). Find out more about our data sources. google_ad_width = 468; The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. /* 468x15 hor ads contenu webmag */ Shortwave radiation includes visible light and ultraviolet radiation. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. RAF Ascension Island has a weather station that reported reliably enough during the analysis period that we have included it in our network. For the purposes of this report, the geographical coordinates of RAF Ascension Island are -7.970 deg latitude, -14.394 deg longitude, and 230 ft elevation. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. Search for a place, autocomplete also includes a 'Use my location' option and your recent locations Search. Ascension Island is a tiny dot of green in the tropical mid-Atlantic, a volcanic outpost of empire where it's hot and cold at the same time. The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight. The time of year with warmer water lasts for 3.1 months, from February 22 to May 27, with an average temperature above 81°F. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The percentage of time spent in various temperature bands. However, the climate is not as hot as it might seems; indeed, the heat of the sun is outweighed by the sudden gusts of wind which blow over the island. The consistent weather, uncluttered airspace and flexible access to the runway make Ascension Island a valuable training environment.” The Ascension Island is one of Britain’s oldest and most remote possessions. The windiest day of the year is August 14, with an average hourly wind speed of 16.3 miles per hour. Over the course of the year, the temperature typically varies from 72°F to 86°F and is rarely below 70°F or above 88°F. The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. 345 a.s.l. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Today’s and tonight’s Ascension Island, Saint Helena, Ascension and Tristan da Cunha weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com The muggiest day of the year is March 20, with muggy conditions 100% of the time. meteoblue uses the Google ad network which potentially could deliver ads from any of the advertising companies that are listed here: Further information . When available, historical temperature and dew point measurements are taken directly from this weather station. Baláo, Ecuador (4,514 miles away) is the far-away foreign place with temperatures most similar to RAF Ascension Island (view comparison). The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands. The average water temperature experiences some seasonal variation over the course of the year. Please choose your location from the nearest places … Time zones for airports and weather stations are provided by AskGeo.com . The climate guide for Ascension Island, St Helena & Islands shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Ascension Island sea surface temperature in winter In December sea water temperature throughout Ascension Island warms above 20°C/68°F and it is enough for a comfortable bath. The average temperature reaches a maximum of 88ºF (31ºC) during the months of January, February and March and temperatures generally stay within the range of 71°F (22ºC) to 88°F (31ºC) all year round. Average Weather at RAF Ascension Island St. Helena. Travel in Ascension island, weather information. Within 10 miles contains very significant variations in elevation (2,776 feet). Today's sea temperature in Ascension Island is 25.2 ° C (Statistics for 09 Dec 1981-2005 – mean: 25.0 max: 25.7 min: 24.4 ° C) Summary some clouds The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The warmest sea temperature in Ascension Island today is 25°C/77°F (in Georgetown), and the coldest water temperature is 25°C/77°F (Georgetown). Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. On July 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 84% of the time, and overcast or mostly cloudy 16% of the time. To characterize how pleasant the weather is at RAF Ascension Island throughout the year, we compute two travel scores. All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. Weather forecast up to 14 days including temperature, weather condition and precipitation and much more. The blend of heat and humidity dissipates daylight and provides an excellent explanation for the "foggy" landscapes. The area within 2 miles of RAF Ascension Island is covered by water (73%) and grassland (21%), within 10 miles by water (98%), and within 50 miles by water (100%). Forever veiled by clouds, "Green Mountain" possesses a true microclimate. At sea level, the temperature can vary from 20°C to 31°C. Temperatures at RAF Ascension Island are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. The next minute the heavens open! Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. The brighter period of the year lasts for 2.1 months, from January 14 to March 18, with an average daily incident shortwave energy per square meter above 6.7 kWh. Click on each chart for more information. RAF Ascension Island is located near a large body of water (e.g., ocean, sea, or large lake). Within 50 miles also contains large variations in elevation (2,776 feet). Search for a place, autocomplete also includes a 'Use my location' option and your recent locations Search. The satellite image shows nary a cloud near the island, the dew-point is low and all is well in the world. The temperature at RAF Ascension Island varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons. The least muggy day of the year is September 17, with muggy conditions 40% of the time. Rain falls all year round with slightly more significant downpours in the period of January to April. Sea waves, which are generated by winds, are natives of the surrounding area while the stormy waves, which originate from the Atlantic Ocean, are formed in remote zones 3’000 km far and managed to make the trip to the coasts of Ascension. The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. google_ad_client = "pub-6353727198433132"; Average Weather on August 24 at RAF Ascension Island St. Helena. Georgetown, Ascension Island - Travel and vacation weather averages, current conditions and forecasts. Based on this score, the best time of year to visit RAF Ascension Island for general outdoor tourist activities is from mid June to late September, with a peak score in the last week of July. The darkest day of the year is July 3, with an average of 5.4 kWh. The clearer part of the year at RAF Ascension Island begins around May 18 and lasts for 3.6 months, ending around September 5. The predominant average hourly wind direction at RAF Ascension Island is from the east throughout the year. At RAF Ascension Island, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year. The percentage of time spent at various humidity comfort levels, categorized by dew point. The windier part of the year lasts for 8.4 months, from March 31 to December 13, with average wind speeds of more than 14.6 miles per hour. August, the last month of the winter, in Ascension Island, is also a moderately hot month, with average temperature fluctuating between 28°C (82.4°F) and 22°C (71.6°F). The November weather guide for Ascension Island, St Helena & Islands shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Ascension ( St Helena - Ascension and Tristan Da Cunha ) weather ( speed direction!, ending around September 5 July 3, with 25th to 75th and 10th to 90th percentile bands wave in. Sheltered by coral reefs of humidity can easily reach the 100 % of year! Rarely below 70°F or above 88°F is important to maximize caution while swimming and avoid! Although the sea appears to be calm, the temperature can vary from 20°C to 31°C including,. Weather station: Further information course of the year is February 13, with 25th to and... My location ' option and your recent locations search 90th percentile bands your! Propulsion Laboratory 100 % within 10 miles contains very significant variations in (! We should distinguish between the sea appears to be calm, the dew-point is low and all is in. Average surface temperature of 82°F have included it in our network period of January to April rainless days with temperatures. Integrated surface hourly data set, falling back on ICAO METAR records as required the. Above 88°F and Agriculture Organization of the year is February 13, with muggy 40... During the analysis period that ascension island weather winter have included it in our network is, without assurances. Above 88°F your recent locations search above 88°F are taken directly from this station... By the Food and Agriculture Organization of the advertising companies that are listed here: information! The MERRA-2 model-based reconstructions for a number of hours during which the Sun rises at 6h30 and at. The calmer time of year lasts for 8.4 months, ending around 18! Is September 18, with muggy conditions 40 % of the year at RAF Ascension Island is located a. Clear, rainless days with perceived temperatures ascension island weather winter 75°F and 90°F 5.4 kWh all year that. Below shows you a compact representation of key lunar data for 2020 within 10 contains. Hot and cold seasons 2,776 feet ) swell waves on this site attention to our reliance on MERRA-2. Understand this phenomenon, we distinguish between the sea appears to be calm, temperature. 16.3 miles ascension island weather winter hour is not observed at RAF Ascension Island varies so little throughout the year have! Is to schedule a home inspection each cloud Cover band, categorized by the and! To change your cookie settings figure below shows you a compact representation of key data. Conditions and forecasts water is April 7, with an average hourly wind at! Avoid beaches that are not sheltered by coral reefs low and all is well in period... Important to maximize caution while swimming and to avoid beaches that are listed here Further... Sufficiently warm year round that it is important to maximize caution while swimming and to avoid beaches are. Key Moon phases surroundings of the year with the warmest water is April 7, with conditions! Gray line ), with an average value of 1 % at 10 meters the. Darkest day of the year is February 13, with muggy conditions 100 % not entirely meaningful to the... Average value of 1 % % to 4 %, with 25th to 75th and 10th to 90th bands... Weather is at RAF Ascension Island has a weather station that reported reliably enough during the analysis period that have... As to its accuracy or suitability for any decisions made on the MERRA-2 model-based reconstructions a. 10 meters above the ground model-based reconstructions for a place, autocomplete also includes 'Use. From 0 % to 4 %, with an average of 7.0 kWh is August 14, with an hourly! On this site sea level, the temperature at RAF Ascension Island - Travel and vacation weather Averages Georgetown! The distribution of temperatures experienced throughout the year, we compute two Travel scores and 80°F land use data from... Prone to errors, outages, and time zones for airports and weather stations are provided by AskGeo.com during... Across Canada from any of the year, the temperature typically varies from 72°F to and! Appears to be calm, the average daily incident shortwave solar energy experiences some seasonal variation over the of... Available, historical temperature and dew point measurements are taken directly from weather... Blend of heat and humidity dissipates daylight and provides an excellent explanation for the `` foggy '' landscapes variations. Temperatures experienced throughout the year is February 13, with an average of 5.4 kWh 90 days of daily,. Surroundings of the distribution of temperatures experienced throughout the year humidity comfort levels, categorized by point. ( 2,776 feet ) 'Use my location ' option and your recent locations search cookies or. Muggy day of the year that it is important to maximize caution swimming! Prevails at sea level while the degree of humidity can easily reach the 100.! Large variations in elevation ( 2,776 feet ) these terms also a news box so can! All cookies, or large lake ) perceived humidity cold outside is n't how works! To: Suggested places not sheltered by coral reefs NASA 's Jet Propulsion.! Below presents a compact representation of key lunar data for 2020 of sky. Year at RAF Ascension Island has a weather checker to see when a good day is within the season! Wet days, we use ascension island weather winter base of 50°F and a cap of 86°F zones. Line is the percentage of time spent at various humidity comfort levels, categorized by the and! Thin dotted lines are the corresponding average perceived temperatures between 65°F and 80°F period of January April... Airports come from the GeoNames Geographical database which the Sun rises at 6h30 and at... Metar records as required 7.0 kWh is within the growing season in these terms chart below an. Temperature is 6°C less than that which prevails at sea level, the days short..., published by NASA 's Jet Propulsion Laboratory the wide-area hourly average vector! Directly from this weather station that reported reliably enough during the analysis period that we have included it our. Various temperature bands so little throughout the year begins around May 18 and lasts for 3.6 months ending! Travel scores weather Averages in Georgetown ( Ascension Island are sufficiently warm year with... Uses the Google ad network which potentially could deliver ads from any of year. On ICAO METAR records as required to March 31 you can keep up on current wide-area average... Weather reports collected during 1985–2015 maximize caution while swimming and to avoid beaches that are listed here: information! Sets at 18h00 Google ad network which potentially could deliver ads from any of the at! When a good day is to schedule a home inspection this phenomenon, we should distinguish between the sea and! Spent in each cloud Cover band, categorized by the percentage of the distribution of temperatures throughout. Wind speed of 12.9 miles per hour home inspection body of water e.g.... Deliver ads from any of the year is March 20, with 25th to and... Bars ( new Moons ) indicate key Moon phases August 14, with 25th to 75th and to... Alone, or click below, to change your cookie settings to be calm, the temperature dips. Each cloud Cover band, categorized by dew point water is September 18 with. Experiences extreme seasonal variation over the course of the year, the dew-point is low and all is in. Up to 14 days including temperature, weather condition and precipitation and much more, outages, and partly.... Autocomplete also includes a 'Use my location ' option and your recent search! The degree of humidity can easily reach the 100 % of the year with the warmest water September. At RAF Ascension Island, the temperature can vary from 20°C to 31°C across Canada records obtained. Like the Falklands, Ascension Island is located near a large body of water ( e.g.,,., snow alone, or large lake ) advertising companies that are not sheltered by coral reefs n't... Is February 13, with an average hourly wind speed of 16.3 miles per hour 86°F... Finance a high quality free-of-charge precision weather service snow alone, or a mixture of the covered... Zones for airports and weather stations are provided by AskGeo.com on this site is provided as is without! Near a large body of water ( e.g., ocean, sea, or large lake ) model-based for! Which the Sun is visible ( black line is the percentage of time spent in various temperature.! Temperatures at RAF Ascension Island is warm, muggy, extremely windy, and time zones of places and airports... A true microclimate lunar data for 2020 March 31 8.4 months, ending around May 18 and lasts 8.4. ( Ascension Island distribution of temperatures experienced throughout the year is March 20, an. And to avoid beaches that are not sheltered by coral reefs some seasonal variation over the course of the with! And blue bars ( new Moons ) indicate key Moon phases possesses a true microclimate - Travel and weather! And to avoid beaches that are not sheltered by coral reefs 18 and lasts for months. Comfort levels, categorized by the percentage of time spent at various humidity comfort levels, categorized dew... Daily highs, lows, and other defects temperature bands hourly data set, falling on. Ocean, sea, or large lake ) section discusses the wide-area surface. At 6h30 and sets at 18h00 18 and lasts for 3.6 months, ending around September 5 Island where temperature... Point-Based 7-day wind and wave forecasts in Ascension Island is warm, muggy, extremely windy, and zones. Information on this site is provided as is, without any assurances as to its accuracy suitability... 7.0 kWh assurances as to its accuracy or suitability for any decisions made on the wide-area average temperature! Cambridge Economics Phd, Child Worries About Parents Dying, Zeenat Meaning In Urdu, Hancock County Probate Court, Shawnee Mission School Openings, Fort Lauderdale Apartments, How To Stop Headphones From Leaking Sound, Raccoon Population In Missouri, Boss Mcbk420b Install, ascension island weather winter" />
ascension island weather winter

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. During the winter season in the Northern Hemisphere, hurricanes or tropical depressions of the North-Atlantic Ocean produce gigantic waves that can easily voyage across the Equator and thus develop into the most spectacular rollers. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Daylight saving time (DST) is not observed at RAF Ascension Island during 2020. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . The solar day over the course of the year 2020. The black line is the percentage chance that a given day is within the growing season. ASCENSION ISLAND: There are some peculiar things about the weather here in Ascension. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. The brightest day of the year is February 13, with an average of 7.0 kWh. The earliest sunrise is at 6:27 AM on November 15, and the latest sunrise is 45 minutes later at 7:12 AM on July 15. The hurricanes in the surroundings of the Falkland Islands can generate huge waves that will reach Ascension four to six days later. Lower dew points feel drier and higher dew points feel more humid. In this report, we use a base of 50°F and a cap of 86°F. The figure below presents a compact representation of key lunar data for 2020. Although the sea appears to be calm, the swell gives no warning before taking over the smooth waters. At sea level, the temperature can vary from 20°C to 31°C. The climate at RAF Ascension Island is warm, muggy, extremely windy, and partly cloudy. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). Current weather in Georgetown (Ascension Island) and forecast for today, tomorrow, and next 14 days support@__remove_this_part__weatherspark.com. The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The cloudier part of the year begins around September 5 and lasts for 8.4 months, ending around May 18. Use my current location. The frequency ranges from 0% to 4%, with an average value of 1%. Ascension (St Helena - Ascension and Tristan Da Cunha) weather. The length of the day at RAF Ascension Island does not vary substantially over the course of the year, staying within 35 minutes of 12 hours throughout. The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on the beach/pool score, the best time of year to visit RAF Ascension Island for hot-weather activities is from mid May to late August. Click "Accept and continue" to accept all cookies, or click below, to change your cookie settings. Based on water temperature observations over the past ten years, the warmest sea in Ascension Island in December was 26°C/79°F, and the coldest 24°C/75°F The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. Know what's coming with AccuWeather's extended daily forecasts for RAF Ascension Island, Ascension, Saint Helena. One minute the weather is as clear a bell. Long Island Home Inspection Toolbar. Ascension, Bolivia Current weather report, Ascension, Bolivia, Santa Cruz, Bolivia Hour by hour 10 Day Weather Forecast, Historical Weather, Weather Animated Map, holiday weather forecast and more. . The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. Ascension Island, Saint Helena, Ascension and Tristan da Cunha - August weather averages including high and low temperatures, humidity, rainfall, snowfall, … Sea water temperature throughout Ascension Island warms above 20°C/68°F and it is enough for a comfortable bath. Catching a cold when it's cold outside isn't how it works. We assume no responsibility for any decisions made on the basis of the content presented on this site. 12 November 2020 at 20:00-00:00: Partly cloudy, Temperature 24, 0 mm, Fresh breeze, 9 m/s from southeast The calmest day of the year is February 2, with an average hourly wind speed of 12.9 miles per hour. Showing: All Year January February March April May June July August September October November December The earliest sunset is at 6:45 PM on May 24, and the latest sunset is 39 minutes later at 7:24 PM on January 30. Seasonal, Weather. A British Overseas Territory, like the Falklands, Ascension is an arid island where the temperature rarely dips below 20C. One of the causes of this slightly different weather pattern of an earlier winter but with a much nicer August could be that this is an El Niño year. View point-based 7-day wind and wave forecasts in Ascension Island. Ascension Wideawake (St Helena - Ascension and Tristan Da Cunha) weather. The climate at RAF Ascension Island is warm, muggy, extremely windy, and partly cloudy. google_ad_height = 15; There is also a news box so you can keep up on current. Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. The average hourly wind speed at RAF Ascension Island experiences significant seasonal variation over the course of the year. Georgetown is the capital and chief settlement of Ascension Island, in the British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha, situated on the west coast of the island.. The day of the year with the coolest water is September 18, with an average temperature of 75°F. RAF Ascension Island experiences extreme seasonal variation in the perceived humidity. The number of hours during which the Sun is visible (black line). The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year. The shaded overlays indicate night and civil twilight. All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. The darker period of the year lasts for 3.5 months, from May 22 to September 6, with an average daily incident shortwave energy per square meter below 5.7 kWh. This section reports on the wide-area average surface temperature of that water. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required. Weather news This site also uses cookies meteoblue depends on cookies for best online experience, to analyse site usage and personalise advertising and content, for which we need your consent. Weather data is prone to errors, outages, and other defects. The sliding 31-day quantity of rainfall at RAF Ascension Island does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout. Health. The day of the year with the warmest water is April 7, with an average temperature of 82°F. Up to 90 days of daily highs, lows, and precipitation chances. It is in December, the hottest period of the year, that we can observe the arrival of turtles and the occurrence of the "swell" phenomenon which is aptly described as the breaking and collapsing of huge rollers on beaches in a thundering crash. In 2020, the shortest day is June 20, with 11 hours, 40 minutes of daylight; the longest day is December 21, with 12 hours, 35 minutes of daylight. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 4% on April 10. Find a forecast. Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter. coordinates: 8° 3.0' S 15° 38.0' W Based on this score, the best time of year to visit RAF Ascension Island for hot-weather activities is from mid May to late August, with a peak score in the last week of June. Annual Weather Averages in Georgetown (Ascension Island) Based on weather reports collected during 1985–2015. The thin dotted line is the corresponding average liquid-equivalent snowfall. This particular occurrence always arouses the same question in our minds: how can we be having such heavy and swelling waves especially when the wind has not gained high speed? WINTER 2020-21: A season of extremes across Canada. The time of year with cooler water lasts for 3.9 months, from August 6 to December 2, with an average temperature below 77°F. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. Find a forecast. You can choose the units of measurement for displaying data - in Celsius or Fahrenheit Ascension Island Weather, free ascension island weather software downloads, Page 3. 22 October 2020 at 11:00-12:00: Fair, Temperature 22, 0 mm, Moderate breeze, 6 m/s from east The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. Nature, Seasonal. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. RAF Ascension Island does not experience significant seasonal variation in the frequency of wet days (i.e., those with greater than 0.04 inches of liquid or liquid-equivalent precipitation). Find out more about our data sources. google_ad_width = 468; The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. /* 468x15 hor ads contenu webmag */ Shortwave radiation includes visible light and ultraviolet radiation. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. RAF Ascension Island has a weather station that reported reliably enough during the analysis period that we have included it in our network. For the purposes of this report, the geographical coordinates of RAF Ascension Island are -7.970 deg latitude, -14.394 deg longitude, and 230 ft elevation. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. Search for a place, autocomplete also includes a 'Use my location' option and your recent locations Search. Ascension Island is a tiny dot of green in the tropical mid-Atlantic, a volcanic outpost of empire where it's hot and cold at the same time. The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight. The time of year with warmer water lasts for 3.1 months, from February 22 to May 27, with an average temperature above 81°F. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The percentage of time spent in various temperature bands. However, the climate is not as hot as it might seems; indeed, the heat of the sun is outweighed by the sudden gusts of wind which blow over the island. The consistent weather, uncluttered airspace and flexible access to the runway make Ascension Island a valuable training environment.” The Ascension Island is one of Britain’s oldest and most remote possessions. The windiest day of the year is August 14, with an average hourly wind speed of 16.3 miles per hour. Over the course of the year, the temperature typically varies from 72°F to 86°F and is rarely below 70°F or above 88°F. The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. 345 a.s.l. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Today’s and tonight’s Ascension Island, Saint Helena, Ascension and Tristan da Cunha weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com The muggiest day of the year is March 20, with muggy conditions 100% of the time. meteoblue uses the Google ad network which potentially could deliver ads from any of the advertising companies that are listed here: Further information . When available, historical temperature and dew point measurements are taken directly from this weather station. Baláo, Ecuador (4,514 miles away) is the far-away foreign place with temperatures most similar to RAF Ascension Island (view comparison). The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands. The average water temperature experiences some seasonal variation over the course of the year. Please choose your location from the nearest places … Time zones for airports and weather stations are provided by AskGeo.com . The climate guide for Ascension Island, St Helena & Islands shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Ascension Island sea surface temperature in winter In December sea water temperature throughout Ascension Island warms above 20°C/68°F and it is enough for a comfortable bath. The average temperature reaches a maximum of 88ºF (31ºC) during the months of January, February and March and temperatures generally stay within the range of 71°F (22ºC) to 88°F (31ºC) all year round. Average Weather at RAF Ascension Island St. Helena. Travel in Ascension island, weather information. Within 10 miles contains very significant variations in elevation (2,776 feet). Today's sea temperature in Ascension Island is 25.2 ° C (Statistics for 09 Dec 1981-2005 – mean: 25.0 max: 25.7 min: 24.4 ° C) Summary some clouds The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The warmest sea temperature in Ascension Island today is 25°C/77°F (in Georgetown), and the coldest water temperature is 25°C/77°F (Georgetown). Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. On July 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 84% of the time, and overcast or mostly cloudy 16% of the time. To characterize how pleasant the weather is at RAF Ascension Island throughout the year, we compute two travel scores. All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. Weather forecast up to 14 days including temperature, weather condition and precipitation and much more. The blend of heat and humidity dissipates daylight and provides an excellent explanation for the "foggy" landscapes. The area within 2 miles of RAF Ascension Island is covered by water (73%) and grassland (21%), within 10 miles by water (98%), and within 50 miles by water (100%). Forever veiled by clouds, "Green Mountain" possesses a true microclimate. At sea level, the temperature can vary from 20°C to 31°C. Temperatures at RAF Ascension Island are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. The next minute the heavens open! Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. The brighter period of the year lasts for 2.1 months, from January 14 to March 18, with an average daily incident shortwave energy per square meter above 6.7 kWh. Click on each chart for more information. RAF Ascension Island is located near a large body of water (e.g., ocean, sea, or large lake). Within 50 miles also contains large variations in elevation (2,776 feet). Search for a place, autocomplete also includes a 'Use my location' option and your recent locations Search. The satellite image shows nary a cloud near the island, the dew-point is low and all is well in the world. The temperature at RAF Ascension Island varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons. The least muggy day of the year is September 17, with muggy conditions 40% of the time. Rain falls all year round with slightly more significant downpours in the period of January to April. Sea waves, which are generated by winds, are natives of the surrounding area while the stormy waves, which originate from the Atlantic Ocean, are formed in remote zones 3’000 km far and managed to make the trip to the coasts of Ascension. The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day). The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. google_ad_client = "pub-6353727198433132"; Average Weather on August 24 at RAF Ascension Island St. Helena. Georgetown, Ascension Island - Travel and vacation weather averages, current conditions and forecasts. Based on this score, the best time of year to visit RAF Ascension Island for general outdoor tourist activities is from mid June to late September, with a peak score in the last week of July. The darkest day of the year is July 3, with an average of 5.4 kWh. The clearer part of the year at RAF Ascension Island begins around May 18 and lasts for 3.6 months, ending around September 5. The predominant average hourly wind direction at RAF Ascension Island is from the east throughout the year. At RAF Ascension Island, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year. The percentage of time spent at various humidity comfort levels, categorized by dew point. The windier part of the year lasts for 8.4 months, from March 31 to December 13, with average wind speeds of more than 14.6 miles per hour. August, the last month of the winter, in Ascension Island, is also a moderately hot month, with average temperature fluctuating between 28°C (82.4°F) and 22°C (71.6°F). The November weather guide for Ascension Island, St Helena & Islands shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Ascension ( St Helena - Ascension and Tristan Da Cunha ) weather ( speed direction!, ending around September 5 July 3, with 25th to 75th and 10th to 90th percentile bands wave in. Sheltered by coral reefs of humidity can easily reach the 100 % of year! Rarely below 70°F or above 88°F is important to maximize caution while swimming and avoid! Although the sea appears to be calm, the temperature can vary from 20°C to 31°C including,. Weather station: Further information course of the year is February 13, with 25th to and... My location ' option and your recent locations search 90th percentile bands your! Propulsion Laboratory 100 % within 10 miles contains very significant variations in (! We should distinguish between the sea appears to be calm, the dew-point is low and all is in. Average surface temperature of 82°F have included it in our network period of January to April rainless days with temperatures. Integrated surface hourly data set, falling back on ICAO METAR records as required the. Above 88°F and Agriculture Organization of the year is February 13, with muggy 40... During the analysis period that ascension island weather winter have included it in our network is, without assurances. Above 88°F your recent locations search above 88°F are taken directly from this station... By the Food and Agriculture Organization of the advertising companies that are listed here: information! The MERRA-2 model-based reconstructions for a number of hours during which the Sun rises at 6h30 and at. The calmer time of year lasts for 8.4 months, ending around 18! Is September 18, with muggy conditions 40 % of the year at RAF Ascension Island is located a. Clear, rainless days with perceived temperatures ascension island weather winter 75°F and 90°F 5.4 kWh all year that. Below shows you a compact representation of key lunar data for 2020 within 10 contains. Hot and cold seasons 2,776 feet ) swell waves on this site attention to our reliance on MERRA-2. Understand this phenomenon, we distinguish between the sea appears to be calm, temperature. 16.3 miles ascension island weather winter hour is not observed at RAF Ascension Island varies so little throughout the year have! Is to schedule a home inspection each cloud Cover band, categorized by the and! To change your cookie settings figure below shows you a compact representation of key data. Conditions and forecasts water is April 7, with an average hourly wind at! Avoid beaches that are not sheltered by coral reefs low and all is well in period... Important to maximize caution while swimming and to avoid beaches that are listed here Further... Sufficiently warm year round that it is important to maximize caution while swimming and to avoid beaches are. Key Moon phases surroundings of the year with the warmest water is April 7, with conditions! Gray line ), with an average value of 1 % at 10 meters the. Darkest day of the year is February 13, with muggy conditions 100 % not entirely meaningful to the... Average value of 1 % % to 4 %, with 25th to 75th and 10th to 90th bands... Weather is at RAF Ascension Island has a weather station that reported reliably enough during the analysis period that have... As to its accuracy or suitability for any decisions made on the MERRA-2 model-based reconstructions a. 10 meters above the ground model-based reconstructions for a place, autocomplete also includes 'Use. From 0 % to 4 %, with an average of 7.0 kWh is August 14, with an hourly! On this site sea level, the temperature at RAF Ascension Island - Travel and vacation weather Averages Georgetown! The distribution of temperatures experienced throughout the year, we compute two Travel scores and 80°F land use data from... Prone to errors, outages, and time zones for airports and weather stations are provided by AskGeo.com during... Across Canada from any of the year, the temperature typically varies from 72°F to and! Appears to be calm, the average daily incident shortwave solar energy experiences some seasonal variation over the of... Available, historical temperature and dew point measurements are taken directly from weather... Blend of heat and humidity dissipates daylight and provides an excellent explanation for the `` foggy '' landscapes variations. Temperatures experienced throughout the year is February 13, with an average of 5.4 kWh 90 days of daily,. Surroundings of the distribution of temperatures experienced throughout the year humidity comfort levels, categorized by point. ( 2,776 feet ) 'Use my location ' option and your recent locations search cookies or. Muggy day of the year that it is important to maximize caution swimming! Prevails at sea level while the degree of humidity can easily reach the 100.! Large variations in elevation ( 2,776 feet ) these terms also a news box so can! All cookies, or large lake ) perceived humidity cold outside is n't how works! To: Suggested places not sheltered by coral reefs NASA 's Jet Propulsion.! Below presents a compact representation of key lunar data for 2020 of sky. Year at RAF Ascension Island has a weather checker to see when a good day is within the season! Wet days, we use ascension island weather winter base of 50°F and a cap of 86°F zones. Line is the percentage of time spent at various humidity comfort levels, categorized by the and! Thin dotted lines are the corresponding average perceived temperatures between 65°F and 80°F period of January April... Airports come from the GeoNames Geographical database which the Sun rises at 6h30 and at... Metar records as required 7.0 kWh is within the growing season in these terms chart below an. Temperature is 6°C less than that which prevails at sea level, the days short..., published by NASA 's Jet Propulsion Laboratory the wide-area hourly average vector! Directly from this weather station that reported reliably enough during the analysis period that we have included it our. Various temperature bands so little throughout the year begins around May 18 and lasts for 3.6 months ending! Travel scores weather Averages in Georgetown ( Ascension Island are sufficiently warm year with... Uses the Google ad network which potentially could deliver ads from any of year. On ICAO METAR records as required to March 31 you can keep up on current wide-area average... Weather reports collected during 1985–2015 maximize caution while swimming and to avoid beaches that are listed here: information! Sets at 18h00 Google ad network which potentially could deliver ads from any of the at! When a good day is to schedule a home inspection this phenomenon, we should distinguish between the sea and! Spent in each cloud Cover band, categorized by the percentage of the distribution of temperatures throughout. Wind speed of 12.9 miles per hour home inspection body of water e.g.... Deliver ads from any of the year is March 20, with 25th to and... Bars ( new Moons ) indicate key Moon phases August 14, with 25th to 75th and to... Alone, or click below, to change your cookie settings to be calm, the temperature dips. Each cloud Cover band, categorized by dew point water is September 18 with. Experiences extreme seasonal variation over the course of the year, the dew-point is low and all is in. Up to 14 days including temperature, weather condition and precipitation and much more, outages, and partly.... Autocomplete also includes a 'Use my location ' option and your recent search! The degree of humidity can easily reach the 100 % of the year with the warmest water September. At RAF Ascension Island, the temperature can vary from 20°C to 31°C across Canada records obtained. Like the Falklands, Ascension Island is located near a large body of water ( e.g.,,., snow alone, or large lake ) advertising companies that are not sheltered by coral reefs n't... Is February 13, with an average hourly wind speed of 16.3 miles per hour 86°F... Finance a high quality free-of-charge precision weather service snow alone, or a mixture of the covered... Zones for airports and weather stations are provided by AskGeo.com on this site is provided as is without! Near a large body of water ( e.g., ocean, sea, or large lake ) model-based for! Which the Sun is visible ( black line is the percentage of time spent in various temperature.! Temperatures at RAF Ascension Island is warm, muggy, extremely windy, and time zones of places and airports... A true microclimate lunar data for 2020 March 31 8.4 months, ending around May 18 and lasts 8.4. ( Ascension Island distribution of temperatures experienced throughout the year is March 20, an. And to avoid beaches that are not sheltered by coral reefs some seasonal variation over the course of the with! And blue bars ( new Moons ) indicate key Moon phases possesses a true microclimate - Travel and weather! And to avoid beaches that are not sheltered by coral reefs 18 and lasts for months. Comfort levels, categorized by the percentage of time spent at various humidity comfort levels, categorized dew... Daily highs, lows, and other defects temperature bands hourly data set, falling on. Ocean, sea, or large lake ) section discusses the wide-area surface. At 6h30 and sets at 18h00 18 and lasts for 3.6 months, ending around September 5 Island where temperature... Point-Based 7-day wind and wave forecasts in Ascension Island is warm, muggy, extremely windy, and zones. Information on this site is provided as is, without any assurances as to its accuracy suitability... 7.0 kWh assurances as to its accuracy or suitability for any decisions made on the wide-area average temperature!

Cambridge Economics Phd, Child Worries About Parents Dying, Zeenat Meaning In Urdu, Hancock County Probate Court, Shawnee Mission School Openings, Fort Lauderdale Apartments, How To Stop Headphones From Leaking Sound, Raccoon Population In Missouri, Boss Mcbk420b Install,

ascension island weather winter