Diego Garcia climate guide

Get the latest coronavirus (COVID-19) updates for the British Indian Ocean Territory with current travel advice, statistics and online resources.

Temperature in Diego Garcia (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
30°C maximum daytime temperature in January in Diego Garcia30
31°C maximum daytime temperature in February in Diego Garcia31
31°C maximum daytime temperature in March in Diego Garcia31
31°C maximum daytime temperature in April in Diego Garcia31
30°C maximum daytime temperature in May in Diego Garcia30
29°C maximum daytime temperature in June in Diego Garcia29
29°C maximum daytime temperature in July in Diego Garcia29
29°C maximum daytime temperature in August in Diego Garcia29
29°C maximum daytime temperature in September in Diego Garcia29
29°C maximum daytime temperature in October in Diego Garcia29
30°C maximum daytime temperature in November in Diego Garcia30
30°C maximum daytime temperature in December in Diego Garcia30
Min temperature (night-time)
25°C minimum night-time temperature in January in Diego Garcia25
25°C minimum night-time temperature in February in Diego Garcia25
26°C minimum night-time temperature in March in Diego Garcia26
26°C minimum night-time temperature in April in Diego Garcia26
25°C minimum night-time temperature in May in Diego Garcia25
25°C minimum night-time temperature in June in Diego Garcia25
24°C minimum night-time temperature in July in Diego Garcia24
24°C minimum night-time temperature in August in Diego Garcia24
24°C minimum night-time temperature in September in Diego Garcia24
25°C minimum night-time temperature in October in Diego Garcia25
25°C minimum night-time temperature in November in Diego Garcia25
25°C minimum night-time temperature in December in Diego Garcia25
Sea temperature
29°C sea temperature in January in Diego Garcia29
28°C sea temperature in February in Diego Garcia28
29°C sea temperature in March in Diego Garcia29
29°C sea temperature in April in Diego Garcia29
28°C sea temperature in May in Diego Garcia28
27°C sea temperature in June in Diego Garcia27
27°C sea temperature in July in Diego Garcia27
26°C sea temperature in August in Diego Garcia26
27°C sea temperature in September in Diego Garcia27
28°C sea temperature in October in Diego Garcia28
28°C sea temperature in November in Diego Garcia28
29°C sea temperature in December in Diego Garcia29

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

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 (mm)
291 mm monthly rainfall in January in Diego Garcia291
248 mm monthly rainfall in February in Diego Garcia248
195 mm monthly rainfall in March in Diego Garcia195
171 mm monthly rainfall in April in Diego Garcia171
164 mm monthly rainfall in May in Diego Garcia164
138 mm monthly rainfall in June in Diego Garcia138
143 mm monthly rainfall in July in Diego Garcia143
152 mm monthly rainfall in August in Diego Garcia152
228 mm monthly rainfall in September in Diego Garcia228
245 mm monthly rainfall in October in Diego Garcia245
201 mm monthly rainfall in November in Diego Garcia201
254 mm monthly rainfall in December in Diego Garcia254

More climate for Diego Garcia

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

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

What's the climate like in Diego Garcia?

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

Recommended for the British Indian Ocean Territory

  • Top deals & discounts
  • Diego Garcia weather overview
  • More destinations
  • Best time to go to Diego Garcia
  • Diego Garcia 5-day weather forecast
  • Diego Garcia weather today - current conditions (last 24-hours)

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

The climate guide for Diego Garcia, British Indian Ocean Territory 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.

  • Search for cheap car hire prices from top car hire providers
  • Filter car hire deals by price, car type, brand & more
  • Brands include Avis, Enterprise, Europcar, Hertz, Sixt & Thifty

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More British Indian Ocean Territory destinations

More destinations & map >>

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.