Longyearbyen weather in September 2024

Expect 1°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Longyearbyen in September. Check more long-term weather averages for Longyearbyen in September before you book your next holiday to Svalbard in 2024/2025.

  • 1°C maximum daytime temperature in September in Longyearbyen1
    1°C max day temperature
  • 3 hours of sunshine per day
  • 12 days with some rainfall in September in Longyearbyen12
    12 days with some rainfall
  • -3°C minimum night-time temperature in September in Longyearbyen-3
    -3°C min night temperature
  • 14 hours of daylight per day in September in Longyearbyen14
    14 hours of daylight per day
  • No heat & humidity in September in Longyearbyen0
    No heat & humidity
  • 25 mm monthly rainfall in September in Longyearbyen25
    25 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in September in Longyearbyen1
    1 (Low) UV index
  • -1°C sea temperature in September in Longyearbyen-1
    -1°C sea temperature

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The September 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 September?

Daytime temperatures usually reach 1°C in Longyearbyen in September, falling to -3°C at night.

How sunny is it in Longyearbyen in September?

There are normally 3 hours of bright sunshine each day in Longyearbyen in September - that's 19% of daylight hours.

Is the sea cold around Longyearbyen in September?

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

Does it rain in Longyearbyen in September?

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

Longyearbyen September sunrise & sunset times

Browse the sunrise and sunset times for Longyearbyen in September 2024. Select a month to view Longyearbyen sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2024 03:40 22:06
Sunday, 15th September 2024 05:40 20:00
Monday, 30th September 2024 07:29 18:02

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