British Indian Ocean Territory weather in June 2025

Expect 29°C daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in British Indian Ocean Territory in June. Check more long-term weather averages for British Indian Ocean Territory in June before you book your next holiday to British Indian Ocean Territory in 2025/2026.

  • 29°C maximum daytime temperature in June in British Indian Ocean Territory (Diego Garcia)29
    29°C max day temperature
  • 14 days with some rainfall in June in British Indian Ocean Territory (Diego Garcia)14
    14 days with some rainfall
  • 25°C minimum night-time temperature in June in British Indian Ocean Territory (Diego Garcia)25
    25°C min night temperature
  • 12 hours of daylight per day in June in British Indian Ocean Territory (Diego Garcia)12
    12 hours of daylight per day
  • High heat & humidity in June in British Indian Ocean Territory (Diego Garcia)H
    High heat & humidity
  • 138 mm monthly rainfall in June in British Indian Ocean Territory (Diego Garcia)138
    138 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in June in British Indian Ocean Territory (Diego Garcia)10
    10 (Very High) UV index
  • 27°C sea temperature in June in British Indian Ocean Territory (Diego Garcia)27
    27°C sea temperature

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The June 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 the British Indian Ocean Territory in June?

Daytime temperatures usually reach 29°C in Diego Garcia, British Indian Ocean Territory in June with high heat and humidity, falling to 25°C at night.

How warm is the sea around the British Indian Ocean Territory in June?

The average sea temperature around Diego Garcia, British Indian Ocean Territory in June is 27°C.

Does it rain in the British Indian Ocean Territory in June?

There are usually 14 days with some rain in Diego Garcia, British Indian Ocean Territory in June and the average monthly rainfall is 138mm.

British Indian Ocean Territory June sunrise & sunset times

Browse the sunrise and sunset times for British Indian Ocean Territory in June 2025. Select a month to view British Indian Ocean Territory sunrise and sunset times for the next 12 months. The British Indian Ocean Territory sunrise and sunset times shown below are for Diego Garcia.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 07:16 19:00
Sunday, 15th June 2025 07:20 19:02
Monday, 30th June 2025 07:23 19:05

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