British Indian Ocean Territory weather live forecast

Today's maximum temperature in the British Indian Ocean Territory is expected to be 27°C. Select a day from the live weather forecast for the British Indian Ocean Territory (Diego Garcia) for more weather parameters.

Monday
15th Dec
27

26

3

6
Tuesday
16th Dec
29

25

5

11
Wednesday
17th Dec
29

26

5

11
Thursday
18th Dec
29

25

6

11
Friday
19th Dec
30

26

7

11

5-day weather forecast updated at 04:03 on Monday 15th 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 Monday 15th December 2025

Expect isolated thunderstorms in British Indian Ocean Territory with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 50 mm or more of rainfall expected with 99% chance of some rain and a moderate breeze of 21 kph from the west.

27
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
6
UV index (High)
99
% chance of some rain
>50
mm or more of rainfall expected
L
low heat & humidity
21
kph wind from W

British Indian Ocean Territory weather for Tuesday 16th 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 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 84% chance of some rain and a gentle breeze of 16 kph from the west.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
84
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
16
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 5 hours of bright sunshine. There are 20-30 mm of rainfall expected with 85% chance of some rain and a gentle breeze of 13 kph from the east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
85
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from E

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 6 hours of bright sunshine. There are 30-40 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 13 kph from the south-east.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
79
% chance of some rain
<40
mm of rainfall expected
M
moderate heat & humidity
13
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 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 65% chance of some rain and a light breeze of 9 kph from the south.