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Ascension Island Climate & Weather

Ascension Island Climate and Weather


Ascension Island has a subtropical climate, experiencing warm weather all year round with an average humidity of 69 percent. The average temperature reaches a maximum of 88ºF (31ºC) during the months of January, February and March, however temperatures generally stay within 22-31ºC all year round. The South East Trade Winds moderate these temperatures and rainfall is variable. Temperatures at sea level range from 68ºF to 88ºF (18ºC to 31ºC) and about 58ºF to 78ºF (8ºC to 28ºC) on Green Mountain. The rainiest months in Ascension Island are March to May, however even the peak rainy season averages no more than four days of showers per month. March has the longest days, with up to 8.9 hours of sunshine, while October days are the shortest with only 5.2 hours of light.


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