Oulu weather in December 2025

Expect daytime maximum temperatures of 23°F in Oulu, Finland in December based on long-term weather averages. There are no hours of sunshine per day on average with 18 days with some rainfall, which might fall as snow.

  • 23°F maximum daytime temperature in December in Oulu23
    23°F max day temperature
  • 0 hours of sunshine per day
  • 18 days with some rainfall in December in Oulu18
    18 days with some rainfall
  • 10°F minimum night-time temperature in December in Oulu10
    10°F min night temperature
  • 4 hours of daylight per day in December in Oulu4
    4 hours of daylight per day
  • No heat & humidity in December in Oulu0
    No heat & humidity
  • 1.5 inches monthly rainfall in December in Oulu1.5
    1.5 inches of monthly rainfall
  • No UV (maximum) index in December in Oulu0
    No UV (Maximum) Index UV index
  • 30°F sea temperature in December in Oulu30
    30°F sea temperature

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The December weather guide for Finland (Oulu) 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)  |  Imperial (°F)

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How cold is it in Oulu in December?

Daytime temperatures usually reach 23°F in Oulu in December, falling to 10°F at night.

How sunny is it in Oulu in December?

There are normally 0 hours of bright sunshine each day in Oulu in December - that's 8% of daylight hours.

How warm is the sea around Oulu in December?

The average sea temperature around Oulu in December is 30°F.

Does it rain in Oulu in December?

There are usually 18 days with some rain in Oulu in December and the average monthly rainfall is 1.5 inches. Rain may fall as snow in this month.

Oulu December sunrise & sunset times

Browse the sunrise and sunset times for Oulu in December 2025. Select a month to view Oulu sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 09:49 14:25
Tuesday, 16th December 2025 10:24 14:03
Wednesday, 31st December 2025 10:26 14:17

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