Reykjavik weather in December 2025

Expect daytime maximum temperatures of 34°F in Reykjavik, Iceland in December based on long-term weather averages. There are no hours of sunshine per day on average with 19 days with some rainfall and typically 3.9 inches of rainfall in the month, which might fall as snow.

  • 34°F maximum daytime temperature in December in Reykjavik34
    34°F max day temperature
  • 0 hours of sunshine per day
  • 19 days with some rainfall in December in Reykjavik19
    19 days with some rainfall
  • 25°F minimum night-time temperature in December in Reykjavik25
    25°F min night temperature
  • 4 hours of daylight per day in December in Reykjavik4
    4 hours of daylight per day
  • No heat & humidity in December in Reykjavik0
    No heat & humidity
  • 3.9 inches monthly rainfall in December in Reykjavik3.9
    3.9 inches of monthly rainfall
  • No UV (maximum) index in December in Reykjavik0
    No UV (Maximum) Index UV index
  • 37°F sea temperature in December in Reykjavik37
    37°F sea temperature

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The December 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.

Metric (°C)  |  Imperial (°F)

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More about Iceland

How cold is it in Reykjavik in December?

Daytime temperatures usually reach 34°F in Reykjavik in December, falling to 25°F at night.

How sunny is it in Reykjavik in December?

There are normally 0 hours of bright sunshine each day in Reykjavik in December - that's 9% of daylight hours.

How warm is the sea around Reykjavik in December?

The average sea temperature around Reykjavik in December is 37°F.

Does it rain in Reykjavik in December?

There are usually 19 days with some rain in Reykjavik in December and the average monthly rainfall is 3.9 inches. Rain may fall as snow in this month.

Reykjavik December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 10:46 15:47
Tuesday, 16th December 2025 11:17 15:29
Wednesday, 31st December 2025 11:20 15:42

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