Diego Garcia weather by month

Check out Diego Garcia weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Diego Garcia (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
86°F maximum daytime temperature in January in Diego Garcia86
88°F maximum daytime temperature in February in Diego Garcia88
88°F maximum daytime temperature in March in Diego Garcia88
88°F maximum daytime temperature in April in Diego Garcia88
86°F maximum daytime temperature in May in Diego Garcia86
84°F maximum daytime temperature in June in Diego Garcia84
84°F maximum daytime temperature in July in Diego Garcia84
84°F maximum daytime temperature in August in Diego Garcia84
84°F maximum daytime temperature in September in Diego Garcia84
84°F maximum daytime temperature in October in Diego Garcia84
86°F maximum daytime temperature in November in Diego Garcia86
86°F maximum daytime temperature in December in Diego Garcia86
Min temperature (night-time)
77°F minimum night-time temperature in January in Diego Garcia77
77°F minimum night-time temperature in February in Diego Garcia77
79°F minimum night-time temperature in March in Diego Garcia79
79°F minimum night-time temperature in April in Diego Garcia79
77°F minimum night-time temperature in May in Diego Garcia77
77°F minimum night-time temperature in June in Diego Garcia77
75°F minimum night-time temperature in July in Diego Garcia75
75°F minimum night-time temperature in August in Diego Garcia75
75°F minimum night-time temperature in September in Diego Garcia75
77°F minimum night-time temperature in October in Diego Garcia77
77°F minimum night-time temperature in November in Diego Garcia77
77°F minimum night-time temperature in December in Diego Garcia77
Heat & Humidity
High heat & humidity in January in Diego GarciaH
High heat & humidity in February in Diego GarciaH
Very high heat & humidity in March in Diego GarciaVH
Very high heat & humidity in April in Diego GarciaVH
High heat & humidity in May in Diego GarciaH
High heat & humidity in June in Diego GarciaH
Moderate heat & humidity in July in Diego GarciaM
Moderate heat & humidity in August in Diego GarciaM
High heat & humidity in September in Diego GarciaH
High heat & humidity in October in Diego GarciaH
High heat & humidity in November in Diego GarciaH
High heat & humidity in December in Diego GarciaH
Sea temperature
84°F sea temperature in January in Diego Garcia84
82°F sea temperature in February in Diego Garcia82
84°F sea temperature in March in Diego Garcia84
84°F sea temperature in April in Diego Garcia84
82°F sea temperature in May in Diego Garcia82
81°F sea temperature in June in Diego Garcia81
81°F sea temperature in July in Diego Garcia81
79°F sea temperature in August in Diego Garcia79
81°F sea temperature in September in Diego Garcia81
82°F sea temperature in October in Diego Garcia82
82°F sea temperature in November in Diego Garcia82
84°F sea temperature in December in Diego Garcia84

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Diego Garcia

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of daylight
12 hours of daylight per day in January in Diego Garcia12
12 hours of daylight per day in February in Diego Garcia12
12 hours of daylight per day in March in Diego Garcia12
12 hours of daylight per day in April in Diego Garcia12
12 hours of daylight per day in May in Diego Garcia12
12 hours of daylight per day in June in Diego Garcia12
12 hours of daylight per day in July in Diego Garcia12
12 hours of daylight per day in August in Diego Garcia12
12 hours of daylight per day in September in Diego Garcia12
12 hours of daylight per day in October in Diego Garcia12
12 hours of daylight per day in November in Diego Garcia12
13 hours of daylight per day in December in Diego Garcia13
UV Index (Maximum)
UV (maximum) index 11+ (Extreme) in January in Diego Garcia11
UV (maximum) index 11+ (Extreme) in February in Diego Garcia11
UV (maximum) index 11+ (Extreme) in March in Diego Garcia11
UV (maximum) index 11+ (Extreme) in April in Diego Garcia11
UV (maximum) index 11 (Extreme) in May in Diego Garcia11
UV (maximum) index 10 (Very High) in June in Diego Garcia10
UV (maximum) index 10 (Very High) in July in Diego Garcia10
UV (maximum) index 11+ (Extreme) in August in Diego Garcia11
UV (maximum) index 11+ (Extreme) in September in Diego Garcia11
UV (maximum) index 11+ (Extreme) in October in Diego Garcia11
UV (maximum) index 11+ (Extreme) in November in Diego Garcia11
UV (maximum) index 11+ (Extreme) in December in Diego Garcia11

Rainfall in Diego Garcia

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
16 days with some rainfall in January in Diego Garcia16
14 days with some rainfall in February in Diego Garcia14
15 days with some rainfall in March in Diego Garcia15
15 days with some rainfall in April in Diego Garcia15
16 days with some rainfall in May in Diego Garcia16
14 days with some rainfall in June in Diego Garcia14
14 days with some rainfall in July in Diego Garcia14
14 days with some rainfall in August in Diego Garcia14
16 days with some rainfall in September in Diego Garcia16
18 days with some rainfall in October in Diego Garcia18
17 days with some rainfall in November in Diego Garcia17
17 days with some rainfall in December in Diego Garcia17
Average monthly rainfall (inches)
11.5 inches monthly rainfall in January in Diego Garcia11.5
9.8 inches monthly rainfall in February in Diego Garcia9.8
7.7 inches monthly rainfall in March in Diego Garcia7.7
6.7 inches monthly rainfall in April in Diego Garcia6.7
6.5 inches monthly rainfall in May in Diego Garcia6.5
5.4 inches monthly rainfall in June in Diego Garcia5.4
5.6 inches monthly rainfall in July in Diego Garcia5.6
6.0 inches monthly rainfall in August in Diego Garcia6.0
9.0 inches monthly rainfall in September in Diego Garcia9.0
9.6 inches monthly rainfall in October in Diego Garcia9.6
7.9 inches monthly rainfall in November in Diego Garcia7.9
10.0 inches monthly rainfall in December in Diego Garcia10.0

More about the Diego Garcia

Diego Garcia by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for British Indian Ocean Territory, represented by Diego Garcia, (Diego Garcia) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Diego Garcia?

Diego Garcia has a hot tropical climate with no dry season.

Metric (°C)  |  Imperial (°F)

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Tropical storm risk: Diego Garcia, British Indian Ocean Territory cyclone season

% of month affected by tropical storms
1.3%
0
0
0
0
0
0
0
<1%
1.5%
2.1%
1.5%
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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Compare Diego Garcia with the USA

Below the Diego Garcia chart shows average maximum daytime temperature for Diego Garcia, British Indian Ocean Territory and the USA (Washington).

Maximum daytime temperature (°F)

Diego Garcia, British Indian Ocean Territory
USA (Washington)
86
41
88
45
88
55
88
66
86
75
84
84
84
88
84
86
84
79
84
68
86
57
86
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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