Tristan da Cunha weather live forecast

Today's maximum temperature in Tristan da Cunha is expected to be 50°F. Select a day from the live weather forecast for Tristan da Cunha, St Helena & Islands for more weather parameters.

Saturday
15th Aug
50

46

5

3
Sunday
16th Aug
52

48

7

3
Monday
17th Aug
54

52

2

2
Tuesday
18th Aug
55

54

5

3
Wednesday
19th Aug
57

54

4

1

5-day weather forecast updated at 04:03 on Saturday 15th 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 Saturday 15th August 2026

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 50°F, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 97% chance of some rain and a fresh breeze of 19 mph from the west.

50
°F maximum temperature
46
°F minimum temperature
sunshine and showers
5
hours of sunshine
3
UV index (Moderate)
97
% chance of some rain
<10
mm of rainfall expected
43
°F wind chill
19
mph 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 52°F, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 51% chance of some rain and a fresh breeze of 19 mph from the west.

52
°F maximum temperature
48
°F minimum temperature
sunshine and showers
7
hours of sunshine
3
UV index (Moderate)
51
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
19
mph wind from W

Tristan da Cunha weather for Monday 17th August 2026

Expect mostly cloudy with light rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 54°F, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 45% chance of some rain and a moderate breeze of 15 mph from the west.

54
°F maximum temperature
52
°F minimum temperature
mostly cloudy with light rain
2
hours of sunshine
2
UV index (Low)
45
% chance of some rain
<2
mm of rainfall expected
54
°F wind chill
15
mph wind from W

Tristan da Cunha weather for Tuesday 18th August 2026

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 55°F, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a strong breeze of 25 mph from the west.

55
°F maximum temperature
54
°F minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
55
°F wind chill
25
mph wind from W

Tristan da Cunha weather for Wednesday 19th August 2026

Expect mostly cloudy with rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 57°F, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 77% chance of some rain and a moderate gale of 33 mph from the north-west.