Seasonal, Weather. 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. 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. Find the most current and reliable 14 day weather forecasts, storm alerts, reports and information for Ascension, PE, CA with The Weather Network. MERRA-2 Modern-Era Retrospective Analysis. 22 October 2020 at 11:00-12:00: Fair, Temperature 22, 0 mm, Moderate breeze, 6 m/s from east The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. //-->. 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. 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. 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. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. The cloudier part of the year begins around September 5 and lasts for 8.4 months, ending around May 18. Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The muggier period of the year lasts for 8.2 months, from November 2 to July 7, during which time the comfort level is muggy, oppressive, or miserable at least 55% of the time. Shortwave radiation includes visible light and ultraviolet radiation. The black line is the percentage chance that a given day is within the growing season. Long Island Home Inspection Toolbar. Use my current location. 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. View point-based 7-day wind and wave forecasts in Ascension Island. 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. At sea level, the temperature can vary from 20°C to 31°C. meteoblue uses the Google ad network which potentially could deliver ads from any of the advertising companies that are listed here: Further information . 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. The average hourly temperature, color coded into bands.