Ascension Island weather live forecast

Today's maximum temperature in Ascension Island is expected to be 79°F. Select a day from the live weather forecast for Ascension Island, St Helena & Islands for more weather parameters.

Monday
6th Oct
79

70

5

11
Tuesday
7th Oct
81

73

4

10
Wednesday
8th Oct
81

73

4

10
Thursday
9th Oct
79

73

7

11
Friday
10th Oct
79

73

4

9

5-day weather forecast updated at 04:04 on Monday 6th October 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 Monday 6th October 2025

Expect sunshine and showers in Ascension Island, St Helena & Islands with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 11+ (Extreme) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 14% chance of some rain and a moderate breeze of 17 mph from the south-east.

79
°F maximum temperature
70
°F minimum temperature
sunshine and showers
5
hours of sunshine
11
UV index (Extreme)
14
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
17
mph wind from SE

Ascension Island weather for Tuesday 7th October 2025

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 16 mph from the south-east.

81
°F maximum temperature
73
°F minimum temperature
broken clouds
4
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
16
mph wind from SE

Ascension Island weather for Wednesday 8th October 2025

81
°F maximum temperature
73
°F minimum temperature
broken clouds
4
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
16
mph wind from SE

Ascension Island weather for Thursday 9th October 2025

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 79°F, low 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 16 mph from the south-east.

79
°F maximum temperature
73
°F minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
L
low heat & humidity
16
mph wind from SE

Ascension Island weather for Friday 10th October 2025

Expect broken clouds in Ascension Island, St Helena & Islands with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 9 (Very High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 17 mph from the south-east.