Longyearbyen weather in October 2025

Expect -4°C daytime maximum temperatures in the shade with on average 1 hours of sunshine per day in Longyearbyen in October. Check more long-term weather averages for Longyearbyen in October before you book your next holiday to Svalbard in 2025/2026.

  • -4°C maximum daytime temperature in October in Longyearbyen-4
    -4°C max day temperature
  • 1 hour of sunshine per day
  • 13 days with some rainfall in October in Longyearbyen13
    13 days with some rainfall
  • -9°C minimum night-time temperature in October in Longyearbyen-9
    -9°C min night temperature
  • 5 hours of daylight per day in October in Longyearbyen5
    5 hours of daylight per day
  • No heat & humidity in October in Longyearbyen0
    No heat & humidity
  • 19 mm monthly rainfall in October in Longyearbyen19
    19 mm of monthly rainfall
  • No UV (maximum) index in October in Longyearbyen0
    No UV (Maximum) Index UV index
  • -1°C sea temperature in October in Longyearbyen-1
    -1°C sea temperature

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The October 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 Longyearbyen in October?

Daytime temperatures usually reach -4°C in Longyearbyen in October, falling to -9°C at night.

How sunny is it in Longyearbyen in October?

There are normally 1 hour of bright sunshine each day in Longyearbyen in October - that's 18% of daylight hours.

Is the sea cold around Longyearbyen in October?

The average sea temperature around Longyearbyen in October is -1°C.

Does it rain in Longyearbyen in October?

There are usually 13 days with some rain in Longyearbyen in October and the average monthly rainfall is 19mm. Rain may fall as snow in this month.

Longyearbyen October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:34 16:56
Thursday, 16th October 2025 08:37 14:46
Friday, 31st October 2025 Darkness all day

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