Diego Garcia weather in October 2025

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

  • 29°C maximum daytime temperature in October in Diego Garcia29
    29°C max day temperature
  • 18 days with some rainfall in October in Diego Garcia18
    18 days with some rainfall
  • 25°C minimum night-time temperature in October in Diego Garcia25
    25°C min night temperature
  • 12 hours of daylight per day in October in Diego Garcia12
    12 hours of daylight per day
  • High heat & humidity in October in Diego GarciaH
    High heat & humidity
  • 245 mm monthly rainfall in October in Diego Garcia245
    245 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in October in Diego Garcia11
    11+ (Extreme) UV index
  • 28°C sea temperature in October in Diego Garcia28
    28°C sea temperature

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The October 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 October?

Daytime temperatures usually reach 29°C in Diego Garcia in October with high heat and humidity, falling to 25°C at night.

How warm is the sea around Diego Garcia in October?

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

Does it rain in Diego Garcia in October?

There are usually 18 days with some rain in Diego Garcia in October and the average monthly rainfall is 245mm.

What is the chance of a cyclone in Diego Garcia in October?

On average less than 1 day in October in Diego Garcia is likely to be affected by the passage of one or more tropical storms.

Diego Garcia October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:55 19:05
Thursday, 16th October 2025 06:48 19:04
Friday, 31st October 2025 06:43 19:05

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