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.

Friday
26th Dec
66

66

2

11
Saturday
27th Dec
66

61

1

7
Sunday
28th Dec
59

55

4

11
Monday
29th Dec
66

59

3

9
Tuesday
30th Dec
66

63

12

10

5-day weather forecast updated at 04:03 on Thursday 25th 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 Friday 26th December 2025

Expect mostly cloudy with light rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 66°F, maximum UV of 11 (Extreme) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 85% chance of some rain and a fresh breeze of 21 mph from the north-west.

66
°F maximum temperature
66
°F minimum temperature
mostly cloudy with light rain
2
hours of sunshine
11
UV index (Extreme)
85
% chance of some rain
<5
mm of rainfall expected
66
°F wind chill
21
mph wind from NW

Tristan da Cunha weather for Saturday 27th December 2025

Expect isolated thunderstorms in Tristan da Cunha, St Helena & Islands with a maximum temperature of 66°F, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 65% chance of some rain and a fresh breeze of 22 mph from the north-west.

66
°F maximum temperature
61
°F minimum temperature
isolated thunderstorms
1
hour of sunshine
7
UV index (High)
65
% chance of some rain
<30
mm of rainfall expected
66
°F wind chill
22
mph wind from NW

Tristan da Cunha weather for Sunday 28th December 2025

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 59°F, maximum UV of 11 (Extreme) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 21 mph from the south.

59
°F maximum temperature
55
°F minimum temperature
broken clouds
4
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
0
no heat & humidity
21
mph wind from S

Tristan da Cunha weather for Monday 29th December 2025

Expect mostly cloudy with light rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 66°F, maximum UV of 9 (Very High) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 72% chance of some rain and a strong breeze of 27 mph from the north.

66
°F maximum temperature
59
°F minimum temperature
mostly cloudy with light rain
3
hours of sunshine
9
UV index (Very High)
72
% chance of some rain
<5
mm of rainfall expected
66
°F wind chill
27
mph wind from N

Tristan da Cunha weather for Tuesday 30th December 2025

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 66°F, maximum UV of 10 (Very High) and 12 hours of bright sunshine. There are 2-5 mm of rainfall expected with 50% chance of some rain and a strong breeze of 25 mph from the west.