Iceland weather in January 2025

Expect 1°C daytime maximum temperatures in the shade with on average 1 hours of sunshine per day in Iceland in January. Check more long-term weather averages for Iceland in January before you book your next holiday to Iceland in 2025/2026.

  • 1°C maximum daytime temperature in January in Iceland (Reykjavik)1
    1°C max day temperature
  • 1 hour of sunshine per day
  • 18 days with some rainfall in January in Iceland (Reykjavik)18
    18 days with some rainfall
  • -4°C minimum night-time temperature in January in Iceland (Reykjavik)-4
    -4°C min night temperature
  • 6 hours of daylight per day in January in Iceland (Reykjavik)6
    6 hours of daylight per day
  • No heat & humidity in January in Iceland (Reykjavik)0
    No heat & humidity
  • 99 mm monthly rainfall in January in Iceland (Reykjavik)99
    99 mm of monthly rainfall
  • No UV (maximum) index in January in Iceland (Reykjavik)0
    No UV (Maximum) Index UV index
  • 3°C sea temperature in January in Iceland (Reykjavik)3
    3°C sea temperature

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The January 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 January. 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 January?

Daytime temperatures usually reach 1°C in Reykjavik, Iceland in January, falling to -4°C at night.

How sunny is it in Iceland in January?

There are normally 1 hour of bright sunshine each day in Reykjavik, Iceland in January - that's 13% of daylight hours.

Is the sea cold around Iceland in January?

The average sea temperature around Reykjavik, Iceland in January is 3°C.

Does it rain in Iceland in January?

There are usually 18 days with some rain in Reykjavik, Iceland in January and the average monthly rainfall is 99mm. Rain may fall as snow in this month.

Iceland January sunrise & sunset times

Browse the sunrise and sunset times for Iceland in January 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 January 2025 11:19 15:44
Thursday, 16th January 2025 10:52 16:24
Friday, 31st January 2025 10:10 17:13

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