Tromso weather in May 2025

Expect 45°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Tromso in May. Check more long-term weather averages for Tromso in May before you book your next holiday to Norway in 2025/2026.

  • 45°F maximum daytime temperature in May in Tromso45
    45°F max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in May in Tromso15
    15 days with some rainfall
  • 32°F minimum night-time temperature in May in Tromso32
    32°F min night temperature
  • 22 hours of daylight per day in May in Tromso22
    22 hours of daylight per day
  • No heat & humidity in May in Tromso0
    No heat & humidity
  • 1.8 inches monthly rainfall in May in Tromso1.8
    1.8 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in May in Tromso3
    3 (Moderate) UV index
  • 41°F sea temperature in May in Tromso41
    41°F sea temperature

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The May weather guide for Norway (Tromso) 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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More about Norway

How cold is it in Tromso in May?

Daytime temperatures usually reach 45°F in Tromso in May, falling to 32°F at night.

How sunny is it in Tromso in May?

There are normally 7 hours of bright sunshine each day in Tromso in May - that's 33% of daylight hours.

How warm is the sea around Tromso in May?

The average sea temperature around Tromso in May is 41°F.

Does it rain in Tromso in May?

There are usually 15 days with some rain in Tromso in May and the average monthly rainfall is 1.8 inches.

Tromso May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 02:19 21:07
Friday, 16th May 2025 00:29 23:07
Saturday, 31st May 2025 Daylight all day

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