Tristan da Cunha weather live forecast

Today's maximum temperature in Tristan da Cunha is expected to be 66°F. Select a day from the live weather forecast for Tristan da Cunha, St Helena & Islands for more weather parameters.

Monday
29th Dec
66

63

7

9
Tuesday
30th Dec
68

64

6

11
Wednesday
31st Dec
64

63

8

11
Thursday
1st Jan
66

63

7

11
Friday
2nd Jan
68

66

9

11

5-day weather forecast updated at 04:04 on Monday 29th 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 Monday 29th December 2025

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 66°F, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 33% chance of some rain and a fresh breeze of 23 mph from the north.

66
°F maximum temperature
63
°F minimum temperature
sunshine and showers
7
hours of sunshine
9
UV index (Very High)
33
% chance of some rain
<2
mm of rainfall expected
66
°F wind chill
23
mph wind from N

Tristan da Cunha weather for Tuesday 30th December 2025

Expect isolated thunderstorms in Tristan da Cunha, St Helena & Islands with a maximum temperature of 68°F, maximum UV of 11 (Extreme) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 56% chance of some rain and a strong breeze of 28 mph from the north.

68
°F maximum temperature
64
°F minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
56
% chance of some rain
<10
mm of rainfall expected
68
°F wind chill
28
mph wind from N

Tristan da Cunha weather for Wednesday 31st December 2025

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 64°F, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 48% chance of some rain and a moderate breeze of 17 mph from the west.

64
°F maximum temperature
63
°F minimum temperature
sunshine and showers
8
hours of sunshine
11
UV index (Extreme)
48
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
17
mph wind from W

Tristan da Cunha weather for Thursday 1st January 2026

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 66°F, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 23 mph from the north-west.

66
°F maximum temperature
63
°F minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
0
no heat & humidity
23
mph wind from NW

Tristan da Cunha weather for Friday 2nd January 2026

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 68°F, maximum UV of 11 (Extreme) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 22 mph from the north-west.