Diego Garcia weather live forecast

Today's maximum temperature in Diego Garcia is expected to be 84°F. Select a day from the live weather forecast for Diego Garcia, British Indian Ocean Territory for more weather parameters.

Friday
18th Sep
84

79

5

11
Saturday
19th Sep
84

79

6

11
Sunday
20th Sep
84

79

3

9
Monday
21st Sep
84

79

4

11
Tuesday
22nd Sep
86

79

4

11

5-day weather forecast updated at 04:02 on Friday 18th September 2026 GMT

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Recommended for the British Indian Ocean Territory

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.

Diego Garcia weather forecast by day

Below are the detailed weather forecasts for Diego Garcia for the next 5 days.

Diego Garcia weather for Friday 18th September 2026

Expect isolated thunderstorms in Diego Garcia, British Indian Ocean Territory with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 52% chance of some rain and a moderate breeze of 16 mph from the south-east.

84
°F maximum temperature
79
°F minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
52
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
16
mph wind from SE

Diego Garcia weather for Saturday 19th September 2026

Expect isolated thunderstorms in Diego Garcia, British Indian Ocean Territory with a maximum temperature of 84°F, 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 35% chance of some rain and a moderate breeze of 15 mph from the south-east.

84
°F maximum temperature
79
°F minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
35
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
15
mph wind from SE

Diego Garcia weather for Sunday 20th September 2026

Expect isolated thunderstorms in Diego Garcia, British Indian Ocean Territory with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 77% chance of some rain and a moderate breeze of 15 mph from the south-east.

84
°F maximum temperature
79
°F minimum temperature
isolated thunderstorms
3
hours of sunshine
9
UV index (Very High)
77
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
15
mph wind from SE

Diego Garcia weather for Monday 21st September 2026

Expect isolated thunderstorms in Diego Garcia, British Indian Ocean Territory with a maximum temperature of 84°F, 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 87% chance of some rain and a moderate breeze of 13 mph from the south-east.

84
°F maximum temperature
79
°F minimum temperature
isolated thunderstorms
4
hours of sunshine
11
UV index (Extreme)
87
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
13
mph wind from SE

Diego Garcia weather for Tuesday 22nd September 2026

Expect isolated thunderstorms in Diego Garcia, British Indian Ocean Territory with a maximum temperature of 86°F, 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 76% chance of some rain and a moderate breeze of 15 mph from the south-east.