Ascension Island weather live forecast

Today's maximum temperature in Ascension Island is expected to be 27°C. Select a day from the live weather forecast for Ascension Island, St Helena & Islands for more weather parameters.

Tuesday
9th Dec
27

23

4

11
Wednesday
10th Dec
27

23

6

10
Thursday
11th Dec
27

23

9

11
Friday
12th Dec
27

23

6

10
Saturday
13th Dec
26

23

7

8

5-day weather forecast updated at 04:04 on Monday 8th December 2025 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 Tuesday 9th December 2025

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south-east.

27
°C maximum temperature
23
°C minimum temperature
broken clouds
4
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
L
low heat & humidity
23
kph wind from SE

Ascension Island weather for Wednesday 10th December 2025

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south-east.

27
°C maximum temperature
23
°C minimum temperature
broken clouds
6
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 Thursday 11th December 2025

Expect scattered clouds in Ascension Island, St Helena & Islands with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the south-east.

27
°C maximum temperature
23
°C minimum temperature
scattered clouds
9
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
L
low heat & humidity
25
kph wind from SE

Ascension Island weather for Friday 12th December 2025

27
°C maximum temperature
23
°C minimum temperature
broken clouds
6
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
28
kph wind from SE

Ascension Island weather for Saturday 13th December 2025

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south-east.