Diego Garcia weather in May 2025

Expect 30°C daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in Diego Garcia in May. Check more long-term weather averages for Diego Garcia in May before you book your next holiday to British Indian Ocean Territory in 2025/2026.

  • 30°C maximum daytime temperature in May in Diego Garcia30
    30°C max day temperature
  • 16 days with some rainfall in May in Diego Garcia16
    16 days with some rainfall
  • 25°C minimum night-time temperature in May in Diego Garcia25
    25°C min night temperature
  • 12 hours of daylight per day in May in Diego Garcia12
    12 hours of daylight per day
  • High heat & humidity in May in Diego GarciaH
    High heat & humidity
  • 164 mm monthly rainfall in May in Diego Garcia164
    164 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in May in Diego Garcia11
    11 (Extreme) UV index
  • 28°C sea temperature in May in Diego Garcia28
    28°C sea temperature

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The May weather guide for British Indian Ocean Territory, represented by Diego Garcia, (Diego Garcia) shows long term 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.

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

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How hot is it in Diego Garcia in May?

Daytime temperatures usually reach 30°C in Diego Garcia in May with high heat and humidity, falling to 25°C at night.

How warm is the sea around Diego Garcia in May?

The average sea temperature around Diego Garcia in May is 28°C.

Does it rain in Diego Garcia in May?

There are usually 16 days with some rain in Diego Garcia in May and the average monthly rainfall is 164mm.

Diego Garcia May sunrise & sunset times

Browse the sunrise and sunset times for Diego Garcia in May 2025. Select a month to view Diego Garcia sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 07:12 19:03
Friday, 16th May 2025 07:13 19:00
Saturday, 31st May 2025 07:16 19:00

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