Iceland weather in October 2025

Expect daytime maximum temperatures of 6°C in Iceland in October based on long-term weather averages. There are 2 hours of sunshine per day on average with 20 days with some rainfall and typically 115 mm of rainfall in the month.

  • 6°C maximum daytime temperature in October in Iceland (Reykjavik)6
    6°C max day temperature
  • 2 hours of sunshine per day
  • 20 days with some rainfall in October in Iceland (Reykjavik)20
    20 days with some rainfall
  • 1°C minimum night-time temperature in October in Iceland (Reykjavik)1
    1°C min night temperature
  • 10 hours of daylight per day in October in Iceland (Reykjavik)10
    10 hours of daylight per day
  • No heat & humidity in October in Iceland (Reykjavik)0
    No heat & humidity
  • 115 mm monthly rainfall in October in Iceland (Reykjavik)115
    115 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in October in Iceland (Reykjavik)1
    1 (Low) UV index
  • 8°C sea temperature in October in Iceland (Reykjavik)8
    8°C sea temperature

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The October weather guide for Iceland (Reykjavik) 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 Iceland destinations

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

All Iceland destinations

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

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More about Iceland

How cold is it in Iceland in October?

Daytime temperatures usually reach 6°C in Reykjavik, Iceland in October, falling to 1°C at night.

How sunny is it in Iceland in October?

There are normally 2 hours of bright sunshine each day in Reykjavik, Iceland in October - that's 24% of daylight hours.

Is the sea cold around Iceland in October?

The average sea temperature around Reykjavik, Iceland in October is 8°C.

Does it rain in Iceland in October?

There are usually 20 days with some rain in Reykjavik, Iceland in October and the average monthly rainfall is 115mm.

Iceland October sunrise & sunset times

Browse the sunrise and sunset times for Iceland in October 2025. Select a month to view Iceland sunrise and sunset times for the next 12 months. The Iceland sunrise and sunset times shown below are for Reykjavik.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 07:37 18:56
Thursday, 16th October 2025 08:21 18:03
Friday, 31st October 2025 09:08 17:13

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