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.

Thursday
13th Aug
26

23

6

9
Friday
14th Aug
27

24

8

8
Saturday
15th Aug
26

23

5

8
Sunday
16th Aug
26

23

6

9
Monday
17th Aug
26

23

6

8

5-day weather forecast updated at 04:03 on Thursday 13th August 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 Thursday 13th August 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 22 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
22
kph wind from SE

Ascension Island weather for Friday 14th August 2026

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-east.

27
°C maximum temperature
24
°C minimum temperature
broken clouds
8
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
21
kph wind from SE

Ascension Island weather for Saturday 15th August 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 8 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south-east.

26
°C maximum temperature
23
°C minimum temperature
broken clouds
5
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
22
kph wind from SE

Ascension Island weather for Sunday 16th August 2026

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
22
kph wind from SE

Ascension Island weather for Monday 17th August 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 8 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the south-east.