Temperature
Pleasant by day, warm at night.
75°Ftypical Aug high
Ascension Island
St. Helena, Ascension and Tristan da Cunha
Ascension Island is most comfortable around August to November. Typical daytime highs run about 74-80°F year-round. Humidity is noticeable much of the year. Rain is rare year-round.
Best time to go
12 mo · Typical year
Temperature range
73°F to 80°F
Rain
1 day/mo
Sunshine
11.5 h/day
Humidity feel
Humid year-round
When to visit
Month-by-month fit
Precipitation
A dry month, with very little rain.
3%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
11.3 hAug sunshine
Heat & humidity by month
The air feels slightly humid this month.
Slightly humidAug heat feel
Air-feel chart data is unavailable for this destination. Use the selected-month dew point, temperature, rain, and sunshine context together rather than treating any one metric as total comfort.
Sea temperature
76°Aug sea temp
More detailIncludes sky and daypart comfort
Cloud cover
Partly cloudy across the month.
46%Aug clear sky
ClearCloud cover
Similar
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Want a side-by-side climate view? Compare Ascension Island with Port Louis.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 11, 2026
Data & methodology