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.

Tuesday
16th Dec
28

26

3

9
Wednesday
17th Dec
29

25

4

11
Thursday
18th Dec
29

26

4

11
Friday
19th Dec
30

26

6

11
Saturday
20th Dec
30

26

4

11

5-day weather forecast updated at 04:03 on Tuesday 16th December 2025 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 Tuesday 16th December 2025

Expect isolated thunderstorms in British Indian Ocean Territory with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 3 hours of bright sunshine. There are 20-30 mm of rainfall expected with 86% chance of some rain and a gentle breeze of 18 kph from the west.

28
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
9
UV index (Very High)
86
% chance of some rain
<30
mm of rainfall expected
L
low heat & humidity
18
kph wind from W

British Indian Ocean Territory weather for Wednesday 17th December 2025

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 10-20 mm of rainfall expected with 86% chance of some rain and a gentle breeze of 18 kph from the south-east.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
11
UV index (Extreme)
86
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from SE

British Indian Ocean Territory weather for Thursday 18th December 2025

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 20-30 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 15 kph from the south-east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
11
UV index (Extreme)
63
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
15
kph wind from SE

British Indian Ocean Territory weather for Friday 19th December 2025

Expect isolated thunderstorms in British Indian Ocean Territory with a maximum temperature of 30°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 60% chance of some rain and a light breeze of 10 kph from the south-east.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
60
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
10
kph wind from SE

British Indian Ocean Territory weather for Saturday 20th December 2025

Expect isolated thunderstorms in British Indian Ocean Territory with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 58% chance of some rain and a light breeze of 9 kph from the south-east.