British Indian Ocean Territory weather live forecast

Today's maximum temperature in the British Indian Ocean Territory is expected to be 28°C. Select a day from the live weather forecast for the British Indian Ocean Territory (Diego Garcia) for more weather parameters.

Thursday
17th Sep
28

27

6

11
Friday
18th Sep
29

26

4

11
Saturday
19th Sep
29

26

6

11
Sunday
20th Sep
29

26

5

8
Monday
21st Sep
29

26

2

11

5-day weather forecast updated at 04:03 on Thursday 17th September 2026 GMT

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The 5-day weather forecast for British Indian Ocean Territory, represented by Diego Garcia, (Diego Garcia) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

British Indian Ocean Territory weather forecast by day

Below are the detailed weather forecasts for the British Indian Ocean Territory for the next 5 days. The forecasts shown are for Diego Garcia and may not represent the whole of the British Indian Ocean Territory. Browse more destinations in British Indian Ocean Territory to view more weather forecasts.

British Indian Ocean Territory weather for Thursday 17th September 2026

Expect isolated thunderstorms in British Indian Ocean Territory with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 19% chance of some rain and a moderate breeze of 28 kph from the south-east.

28
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
19
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
28
kph wind from SE

British Indian Ocean Territory weather for Friday 18th September 2026

Expect isolated thunderstorms in British Indian Ocean Territory with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 57% chance of some rain and a moderate breeze of 26 kph from the south-east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
11
UV index (Extreme)
57
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
26
kph wind from SE

British Indian Ocean Territory weather for Saturday 19th September 2026

Expect isolated thunderstorms in British Indian Ocean Territory with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 32% chance of some rain and a moderate breeze of 24 kph from the south-east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
32
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
24
kph wind from SE

British Indian Ocean Territory weather for Sunday 20th September 2026

Expect isolated thunderstorms in British Indian Ocean Territory with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 43% chance of some rain and a moderate breeze of 23 kph from the south-east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
8
UV index (Very High)
43
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
23
kph wind from SE

British Indian Ocean Territory weather for Monday 21st September 2026

Expect isolated thunderstorms in British Indian Ocean Territory with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 84% chance of some rain and a moderate breeze of 21 kph from the south-east.