Finland weather in October 2025

Expect 9°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Finland in October. Check more long-term weather averages for Finland in October before you book your next holiday to Finland in 2025/2026.

  • 9°C maximum daytime temperature in October in Finland (Helsinki)9
    9°C max day temperature
  • 3 hours of sunshine per day
  • 17 days with some rainfall in October in Finland (Helsinki)17
    17 days with some rainfall
  • 3°C minimum night-time temperature in October in Finland (Helsinki)3
    3°C min night temperature
  • 10 hours of daylight per day in October in Finland (Helsinki)10
    10 hours of daylight per day
  • No heat & humidity in October in Finland (Helsinki)0
    No heat & humidity
  • 72 mm monthly rainfall in October in Finland (Helsinki)72
    72 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in October in Finland (Helsinki)1
    1 (Low) UV index
  • 9°C sea temperature in October in Finland (Helsinki)9
    9°C sea temperature

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The October weather guide for Finland (Helsinki) 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 Finland destinations

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

All Finland destinations

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

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How warm is it in Finland in October?

Daytime temperatures usually reach 9°C in Helsinki, Finland in October, falling to 3°C at night.

How sunny is it in Finland in October?

There are normally 3 hours of bright sunshine each day in Helsinki, Finland in October - that's 26% of daylight hours.

Is the sea cold around Finland in October?

The average sea temperature around Helsinki, Finland in October is 9°C.

Does it rain in Finland in October?

There are usually 17 days with some rain in Helsinki, Finland in October and the average monthly rainfall is 72mm.

Finland October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:26 17:52
Thursday, 16th October 2025 07:03 17:08
Friday, 31st October 2025 07:41 16:26

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