Svalbard weather in December 2025

Expect daytime maximum temperatures of -11°C in Svalbard in December based on long-term weather averages. There are no hours of sunshine per day on average with 12 days with some rainfall, which might fall as snow.

  • -11°C maximum daytime temperature in December in Svalbard (Longyearbyen)-11
    -11°C max day temperature
  • 0 hours of sunshine per day
  • 12 days with some rainfall in December in Svalbard (Longyearbyen)12
    12 days with some rainfall
  • -18°C minimum night-time temperature in December in Svalbard (Longyearbyen)-18
    -18°C min night temperature
  • 0 hours of daylight per day in December in Svalbard (Longyearbyen)0
    0 hours of daylight per day
  • No heat & humidity in December in Svalbard (Longyearbyen)0
    No heat & humidity
  • 25 mm monthly rainfall in December in Svalbard (Longyearbyen)25
    25 mm of monthly rainfall
  • No UV (maximum) index in December in Svalbard (Longyearbyen)0
    No UV (Maximum) Index UV index
  • -2°C sea temperature in December in Svalbard (Longyearbyen)-2
    -2°C sea temperature

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The December weather guide for Svalbard, represented by Longyearbyen, (Longyearbyen) 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 / mm)  |  Imperial (°F / inches)

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How cold is it in Svalbard in December?

Daytime temperatures usually reach -11°C in Longyearbyen, Svalbard in December, falling to -18°C at night.

How sunny is it in Svalbard in December?

There are normally 0 hours of bright sunshine each day in Longyearbyen, Svalbard in December - that's 0% of daylight hours.

Is the sea cold around Svalbard in December?

The average sea temperature around Longyearbyen, Svalbard in December is -2°C.

Does it rain in Svalbard in December?

There are usually 12 days with some rain in Longyearbyen, Svalbard in December and the average monthly rainfall is 25mm. Rain may fall as snow in this month.

Svalbard December sunrise & sunset times

Browse the sunrise and sunset times for Svalbard in December 2025. Select a month to view Svalbard sunrise and sunset times for the next 12 months. The Svalbard sunrise and sunset times shown below are for Longyearbyen.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 Darkness all day
Tuesday, 16th December 2025 Darkness all day
Wednesday, 31st December 2025 Darkness all day

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