St Helena weather in October 2025

Expect 18°C daytime maximum temperatures in the shade with on average -9999 hours of sunshine per day in St Helena in October. Check more long-term weather averages for St Helena in October before you book your next holiday to St Helena & Islands in 2025/2026.

  • 18°C maximum daytime temperature in October in St Helena18
    18°C max day temperature
  • 14 days with some rainfall in October in St Helena14
    14 days with some rainfall
  • 15°C minimum night-time temperature in October in St Helena15
    15°C min night temperature
  • 12 hours of daylight per day in October in St Helena12
    12 hours of daylight per day
  • No heat & humidity in October in St Helena0
    No heat & humidity
  • 43 mm monthly rainfall in October in St Helena43
    43 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in October in St Helena11
    11+ (Extreme) UV index
  • 20°C sea temperature in October in St Helena20
    20°C sea temperature

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The October weather guide for St Helena & Islands (St Helena) 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 St Helena in October?

Daytime temperatures usually reach 18°C in St Helena in October, falling to 15°C at night.

How warm is the sea around St Helena in October?

The average sea temperature around St Helena in October is 20°C.

Does it ever rain in St Helena in October?

There are usually 14 days with some rain in St Helena in October and the average monthly rainfall is 43mm.

St Helena October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:05 18:20
Thursday, 16th October 2025 05:55 18:22
Friday, 31st October 2025 05:46 18:27

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