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.

Wednesday
12th Aug
13

12

5

3
Thursday
13th Aug
14

11

5

3
Friday
14th Aug
14

9

2

3
Saturday
15th Aug
10

9

4

2
Sunday
16th Aug
10

10

4

3

5-day weather forecast updated at 04:03 on Wednesday 12th August 2026 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 12th August 2026

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 100% chance of some rain and a strong breeze of 42 kph from the north-west.

13
°C maximum temperature
12
°C minimum temperature
sunshine and showers
5
hours of sunshine
3
UV index (Moderate)
100
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
42
kph wind from NW

Tristan da Cunha weather for Thursday 13th August 2026

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 62% chance of some rain and a moderate gale of 59 kph from the north-west.

14
°C maximum temperature
11
°C minimum temperature
sunshine and showers
5
hours of sunshine
3
UV index (Moderate)
62
% chance of some rain
<5
mm of rainfall expected
14
°C wind chill
59
kph wind from NW

Tristan da Cunha weather for Friday 14th August 2026

Expect mostly cloudy with rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 93% chance of some rain and a fresh gale of 63 kph from the west.

14
°C maximum temperature
9
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
3
UV index (Moderate)
93
% chance of some rain
<20
mm of rainfall expected
14
°C wind chill
63
kph wind from W

Tristan da Cunha weather for Saturday 15th August 2026

Expect mostly cloudy with rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 10°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 76% chance of some rain and a fresh breeze of 35 kph from the west.

10
°C maximum temperature
9
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
2
UV index (Low)
76
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
35
kph wind from W

Tristan da Cunha weather for Sunday 16th August 2026

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 10°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 61% chance of some rain and a strong breeze of 44 kph from the west.