Tristan da Cunha weather live forecast

Today's maximum temperature in Tristan da Cunha is expected to be 15°C. Select a day from the live weather forecast for Tristan da Cunha, St Helena & Islands for more weather parameters.

Thursday
11th Dec
15

13

6

6
Friday
12th Dec
18

15

3

11
Saturday
13th Dec
19

18

3

8
Sunday
14th Dec
19

16

2

10
Monday
15th Dec
16

14

2

9

5-day weather forecast updated at 04:04 on Thursday 11th December 2025 GMT

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

Tristan da Cunha weather forecast by day

Below are the detailed weather forecasts for Tristan da Cunha for the next 5 days.

Tristan da Cunha weather for Thursday 11th December 2025

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 15°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 40 kph from the south-west.

15
°C maximum temperature
13
°C minimum temperature
broken clouds
6
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
15
°C wind chill
40
kph wind from SW

Tristan da Cunha weather for Friday 12th December 2025

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 18°C, maximum UV of 11+ (Extreme) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 35 kph from the north-west.

18
°C maximum temperature
15
°C minimum temperature
broken clouds
3
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
18
°C wind chill
35
kph wind from NW

Tristan da Cunha weather for Saturday 13th December 2025

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 19°C, maximum UV of 8 (Very High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 47 kph from the north-west.

19
°C maximum temperature
18
°C minimum temperature
broken clouds
3
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
47
kph wind from NW

Tristan da Cunha weather for Sunday 14th December 2025

Expect mostly cloudy with light rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 19°C, maximum UV of 10 (Very High) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 71% chance of some rain and a strong breeze of 47 kph from the north-west.

19
°C maximum temperature
16
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
10
UV index (Very High)
71
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
47
kph wind from NW

Tristan da Cunha weather for Monday 15th December 2025

Expect mostly cloudy with light rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 16°C, maximum UV of 9 (Very High) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 5% chance of some rain and a strong breeze of 41 kph from the south.