St Helena & Islands 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 & Islands in October. Check more long-term weather averages for St Helena & Islands in October before you book your next holiday to St Helena & Islands in 2025/2026.

  • 18°C maximum daytime temperature in October in St Helena & Islands (St Helena)18
    18°C max day temperature
  • 14 days with some rainfall in October in St Helena & Islands (St Helena)14
    14 days with some rainfall
  • 15°C minimum night-time temperature in October in St Helena & Islands (St Helena)15
    15°C min night temperature
  • 12 hours of daylight per day in October in St Helena & Islands (St Helena)12
    12 hours of daylight per day
  • No heat & humidity in October in St Helena & Islands (St Helena)0
    No heat & humidity
  • 43 mm monthly rainfall in October in St Helena & Islands (St Helena)43
    43 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in October in St Helena & Islands (St Helena)11
    11+ (Extreme) UV index
  • 20°C sea temperature in October in St Helena & Islands (St Helena)20
    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.

Top St Helena & Islands destinations

Below are average maximum temperatures at popular countries, regions and places in St Helena & Islands in October. Select a holiday destination to see more weather parameters.

All St Helena & Islands destinations

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

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How hot is it in St Helena & Islands in October?

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

How warm is the sea around St Helena & Islands in October?

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

Does it ever rain in St Helena & Islands in October?

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

St Helena & Islands October sunrise & sunset times

Browse the sunrise and sunset times for St Helena & Islands in October 2025. Select a month to view St Helena & Islands sunrise and sunset times for the next 12 months. The St Helena & Islands sunrise and sunset times shown below are for St Helena.

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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