Tristan da Cunha weather live forecast

Today's maximum temperature in Tristan da Cunha is expected to be 18°C. Select a day from the live weather forecast for Tristan da Cunha, St Helena & Islands for more weather parameters.

Friday
22nd May
18

14

3

UV2
Saturday
23rd May
15

13

6

UV2
Sunday
24th May
16

15

6

UV2
Monday
25th May
15

15

7

UV2
Tuesday
26th May
16

13

6

UV2

5-day weather forecast updated at 04:02 on Friday 22nd 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 Friday 22nd May 2026

Expect isolated thunderstorms in Tristan da Cunha, St Helena & Islands with a maximum temperature of 18°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 94% chance of some rain and a strong breeze of 51 kph from the west.

18
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
UV2
UV index (Low)
94
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
51
kph wind from W

Tristan da Cunha weather for Saturday 23rd May 2026

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 15°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 42% chance of some rain and a moderate gale of 52 kph from the west.

15
°C maximum temperature
13
°C minimum temperature
sunshine and showers
6
hours of sunshine
UV2
UV index (Low)
42
% chance of some rain
<2
mm of rainfall expected
15
°C wind chill
52
kph wind from W

Tristan da Cunha weather for Sunday 24th May 2026

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 16°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 48% chance of some rain and a strong breeze of 44 kph from the west.

16
°C maximum temperature
15
°C minimum temperature
sunshine and showers
6
hours of sunshine
UV2
UV index (Low)
48
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
44
kph wind from W

Tristan da Cunha weather for Monday 25th May 2026

Expect scattered clouds in Tristan da Cunha, St Helena & Islands with a maximum temperature of 15°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 38 kph from the west.

15
°C maximum temperature
15
°C minimum temperature
scattered clouds
7
hours of sunshine
UV2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
38
kph wind from W

Tristan da Cunha weather for Tuesday 26th May 2026

Expect sunshine and showers in Tristan da Cunha, St Helena & Islands with a maximum temperature of 16°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 68% chance of some rain and a strong breeze of 41 kph from the west.