Tristan da Cunha weather live forecast

Today's maximum temperature in Tristan da Cunha is expected to be 9°C. Select a day from the live weather forecast for Tristan da Cunha, St Helena & Islands for more weather parameters.

Wednesday
3rd Sep
9

8

1

2
Thursday
4th Sep
10

9

2

3
Friday
5th Sep
12

9

2

3
Saturday
6th Sep
13

12

3

4
Sunday
7th Sep
15

12

0

3

5-day weather forecast updated at 04:04 on Wednesday 3rd September 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 Wednesday 3rd September 2025

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 9°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 35 kph from the south-east.

9
°C maximum temperature
8
°C minimum temperature
broken clouds
1
hour of sunshine
2
UV index (Low)
0
mm of rainfall expected
5
°C wind chill
35
kph wind from SE

Tristan da Cunha weather for Thursday 4th September 2025

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 10°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south.

10
°C maximum temperature
9
°C minimum temperature
broken clouds
2
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
7
°C wind chill
23
kph wind from S

Tristan da Cunha weather for Friday 5th September 2025

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

12
°C maximum temperature
9
°C minimum temperature
broken clouds
2
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
20
kph wind from W

Tristan da Cunha weather for Saturday 6th September 2025

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 13°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 34 kph from the north-west.

13
°C maximum temperature
12
°C minimum temperature
broken clouds
3
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
34
kph wind from NW

Tristan da Cunha weather for Sunday 7th September 2025

Expect mostly cloudy with rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 68% chance of some rain and a strong breeze of 48 kph from the north-west.