At sea level, the temperature can vary from 20°C to 31°C. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. When available, historical temperature and dew point measurements are taken directly from this weather station. The figure below shows you a compact characterization of the entire year of hourly average temperatures. ASCENSION ISLAND: There are some peculiar things about the weather here in Ascension. 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. 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). The shaded overlays indicate night and civil twilight. Please choose your location from the nearest places … The next minute the heavens open! 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. 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. 345 a.s.l. Ascension Wideawake (St Helena - Ascension and Tristan Da Cunha) weather. On November 11, the cloudiest day of the year, the sky is overcast or mostly cloudy 60% of the time, and clear, mostly clear, or partly cloudy 40% of the time. 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 . At sea level, the temperature can vary from 20°C to 31°C. Lower dew points feel drier and higher dew points feel more humid. Time zones for airports and weather stations are provided by AskGeo.com . /* 468x15 hor ads contenu webmag */ Sea water temperature throughout Ascension Island warms above 20°C/68°F and it is enough for a comfortable bath. The time of year with cooler water lasts for 3.9 months, from August 6 to December 2, with an average temperature below 77Â°F. Find out more about our data sources. The satellite image shows nary a cloud near the island, the dew-point is low and all is well in the world. Our tourism temperature score is 0 for perceived temperatures below 50Â°F, rising linearly to 9 for 65Â°F, to 10 for 75Â°F, falling linearly to 9 for 80Â°F, and to 1 for 90Â°F or hotter. 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. Search for a place, autocomplete also includes a 'Use my location' option and your recent locations Search. Use my current location. Get the forecast for today, tonight & tomorrow's weather for RAF Ascension Island, Ascension, Saint Helena. 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. Know what's coming with AccuWeather's extended daily forecasts for RAF Ascension Island, Ascension, Saint Helena. Average Weather on August 24 at RAF Ascension Island St. Helena. Choose any offshore point in Ascension Island to view an accurate marine weather forecast. We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. 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 predominant average hourly wind direction at RAF Ascension Island is from the east throughout the year. Seasonal, Weather. The figure below presents a compact representation of key lunar data for 2020. Travel in Ascension island, weather information. 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. Shortwave radiation includes visible light and ultraviolet radiation. Temperatures at RAF Ascension Island are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms.