Ascension Island weather live forecast

Today's maximum temperature in Ascension Island is expected to be 29°C. Select a day from the live weather forecast for Ascension Island, St Helena & Islands for more weather parameters.

Monday
19th Jan
29

24

7

11
Tuesday
20th Jan
29

24

6

11
Wednesday
21st Jan
29

24

6

11
Thursday
22nd Jan
28

24

6

11
Friday
23rd Jan
28

25

6

9

5-day weather forecast updated at 04:05 on Saturday 17th January 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 19th January 2026

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south-east.

29
°C maximum temperature
24
°C minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
27
kph wind from SE

Ascension Island weather for Tuesday 20th January 2026

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south-east.

29
°C maximum temperature
24
°C minimum temperature
broken clouds
6
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
27
kph wind from SE

Ascension Island weather for Wednesday 21st January 2026

29
°C maximum temperature
24
°C minimum temperature
broken clouds
6
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
22
kph wind from SE

Ascension Island weather for Thursday 22nd January 2026

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south-east.

28
°C maximum temperature
24
°C minimum temperature
broken clouds
6
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 Friday 23rd January 2026

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 28°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 east.