Ascension Island weather live forecast

Today's maximum temperature in Ascension Island is expected to be 26°C. Select a day from the live weather forecast for Ascension Island, St Helena & Islands for more weather parameters.

Monday
14th Sep
26

23

8

10
Tuesday
15th Sep
26

23

6

9
Wednesday
16th Sep
26

23

7

7

5-day weather forecast updated at 04:03 on Thursday 10th September 2026 GMT

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The 5-day weather forecast for St Helena & Islands (Ascension Island) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Ascension Island weather forecast by day

Below are the detailed weather forecasts for Ascension Island for the next 5 days.

Ascension Island weather for Monday 14th September 2026

Expect scattered clouds in Ascension Island, St Helena & Islands with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south-east.

26
°C maximum temperature
23
°C minimum temperature
scattered clouds
8
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
23
kph wind from SE

Ascension Island weather for Tuesday 15th September 2026

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south-east.

26
°C maximum temperature
23
°C minimum temperature
broken clouds
6
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
27
kph wind from SE

Ascension Island weather for Wednesday 16th September 2026

Expect scattered clouds in Ascension Island, St Helena & Islands with a maximum temperature of 26°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the south-east.