Tristan da Cunha weather live forecast

Today's maximum temperature in Tristan da Cunha is expected to be 64°F. Select a day from the live weather forecast for Tristan da Cunha, St Helena & Islands for more weather parameters.

Monday
18th May
64

63

6

2
Tuesday
19th May
64

61

1

1
Wednesday
20th May
61

59

2

1
Thursday
21st May
64

61

4

2
Friday
22nd May
64

59

4

2

5-day weather forecast updated at 04:02 on Monday 18th May 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 18th May 2026

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 64°F, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 6% chance of some rain and a fresh breeze of 18 mph from the north-west.

64
°F maximum temperature
63
°F minimum temperature
sunshine and showers
6
hours of sunshine
2
UV index (Low)
6
% chance of some rain
<2
mm of rainfall expected
64
°F wind chill
18
mph wind from NW

Tristan da Cunha weather for Tuesday 19th May 2026

Expect isolated thunderstorms in Tristan da Cunha, St Helena & Islands with a maximum temperature of 64°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 30-40 mm of rainfall expected with 90% chance of some rain and a strong breeze of 28 mph from the north-west.

64
°F maximum temperature
61
°F minimum temperature
isolated thunderstorms
1
hour of sunshine
1
UV index (Low)
90
% chance of some rain
<40
mm of rainfall expected
0
no heat & humidity
28
mph wind from NW

Tristan da Cunha weather for Wednesday 20th May 2026

Expect mostly cloudy with rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 61°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 54% chance of some rain and a gentle breeze of 11 mph from the north.

61
°F maximum temperature
59
°F minimum temperature
mostly cloudy with rain
2
hours of sunshine
1
UV index (Low)
54
% chance of some rain
<30
mm of rainfall expected
61
°F wind chill
11
mph wind from N

Tristan da Cunha weather for Thursday 21st May 2026

Expect mostly cloudy with rain in Tristan da Cunha, St Helena & Islands with a maximum temperature of 64°F, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 62% chance of some rain and a fresh breeze of 20 mph from the north.

64
°F maximum temperature
61
°F minimum temperature
mostly cloudy with rain
4
hours of sunshine
2
UV index (Low)
62
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
20
mph wind from N

Tristan da Cunha weather for Friday 22nd May 2026

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 64°F, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 79% chance of some rain and a strong breeze of 29 mph from the north-west.