Longyearbyen weather in August 2025

Expect 43°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Longyearbyen in August. Check more long-term weather averages for Longyearbyen in August before you book your next holiday to Svalbard in 2025/2026.

• 43
  43°F max day temperature
• 5
  5 hours of sunshine per day
• 13
  13 days with some rainfall
• 36
  36°F min night temperature
• 23
  23 hours of daylight per day
• 0
  No heat & humidity
• 1.2
  1.2 inches of monthly rainfall
• 1
  1 (Low) UV index
• 30
  30°F sea temperature

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The August 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)  |  Imperial (°F)

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Longyearbyen August sunrise & sunset times

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

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