Tristan da Cunha weather live forecast

Today's maximum temperature in Tristan da Cunha is expected to be 13°C. Select a day from the live weather forecast for Tristan da Cunha, St Helena & Islands for more weather parameters.

Saturday
16th Aug
13

9

6

3
Sunday
17th Aug
11

9

5

3
Monday
18th Aug
12

9

1

2
Tuesday
19th Aug
9

8

3

3
Wednesday
20th Aug
12

8

4

2

5-day weather forecast updated at 04:03 on Saturday 16th August 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 Saturday 16th August 2025

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 69% chance of some rain and a strong breeze of 47 kph from the west.

13
°C maximum temperature
9
°C minimum temperature
sunshine and showers
6
hours of sunshine
3
UV index (Moderate)
69
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
47
kph wind from W

Tristan da Cunha weather for Sunday 17th August 2025

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 11°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 32% chance of some rain and a fresh breeze of 29 kph from the west.

11
°C maximum temperature
9
°C minimum temperature
sunshine and showers
5
hours of sunshine
3
UV index (Moderate)
32
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
29
kph wind from W

Tristan da Cunha weather for Monday 18th August 2025

Expect mostly cloudy with rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 12°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 87% chance of some rain and a strong breeze of 42 kph from the south.

12
°C maximum temperature
9
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
2
UV index (Low)
87
% chance of some rain
<20
mm of rainfall expected
12
°C wind chill
42
kph wind from S

Tristan da Cunha weather for Tuesday 19th August 2025

Expect mostly cloudy with light rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 9°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 56% chance of some rain and a fresh breeze of 34 kph from the south.

9
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
3
UV index (Moderate)
56
% chance of some rain
<2
mm of rainfall expected
5
°C wind chill
34
kph wind from S

Tristan da Cunha weather for Wednesday 20th August 2025

Expect mostly cloudy with light rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 12°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 84% chance of some rain and a fresh breeze of 30 kph from the west.