Tristan da Cunha weather live forecast

Today's maximum temperature in Tristan da Cunha is expected to be 15°C. Select a day from the live weather forecast for Tristan da Cunha, St Helena & Islands for more weather parameters.

Monday
24th Aug
15

14

0

2
Tuesday
25th Aug
15

13

5

4
Wednesday
26th Aug
13

12

2

4
Thursday
27th Aug
12

10

6

4
Friday
28th Aug
11

10

4

3

5-day weather forecast updated at 04:03 on Sunday 23rd 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 Monday 24th August 2026

Expect mostly cloudy with rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 15°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 90% chance of some rain and a strong breeze of 39 kph from the north-west.

15
°C maximum temperature
14
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
2
UV index (Low)
90
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
39
kph wind from NW

Tristan da Cunha weather for Tuesday 25th August 2026

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 72% chance of some rain and a fresh breeze of 38 kph from the north-west.

15
°C maximum temperature
13
°C minimum temperature
sunshine and showers
5
hours of sunshine
4
UV index (Moderate)
72
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
38
kph wind from NW

Tristan da Cunha weather for Wednesday 26th August 2026

Expect mostly cloudy with rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 13°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 96% chance of some rain and a fresh breeze of 36 kph from the north-west.

13
°C maximum temperature
12
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
4
UV index (Moderate)
96
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
36
kph wind from NW

Tristan da Cunha weather for Thursday 27th August 2026

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 12°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 71% chance of some rain and a fresh breeze of 37 kph from the west.

12
°C maximum temperature
10
°C minimum temperature
sunshine and showers
6
hours of sunshine
4
UV index (Moderate)
71
% chance of some rain
<5
mm of rainfall expected
12
°C wind chill
37
kph wind from W

Tristan da Cunha weather for Friday 28th August 2026

Expect broken clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 11°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 36 kph from the south-west.