Trondheim weather in May 2025

Expect 12°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Trondheim in May. Check more long-term weather averages for Trondheim in May before you book your next holiday to Norway in 2025/2026.

  • 12°C maximum daytime temperature in May in Trondheim12
    12°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in May in Trondheim15
    15 days with some rainfall
  • 4°C minimum night-time temperature in May in Trondheim4
    4°C min night temperature
  • 18 hours of daylight per day in May in Trondheim18
    18 hours of daylight per day
  • No heat & humidity in May in Trondheim0
    No heat & humidity
  • 53 mm monthly rainfall in May in Trondheim53
    53 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in May in Trondheim3
    3 (Moderate) UV index
  • 8°C sea temperature in May in Trondheim8
    8°C sea temperature

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

How warm is it in Trondheim in May?

Daytime temperatures usually reach 12°C in Trondheim in May, falling to 4°C at night.

How sunny is it in Trondheim in May?

There are normally 7 hours of bright sunshine each day in Trondheim in May - that's 38% of daylight hours.

Is the sea cold around Trondheim in May?

The average sea temperature around Trondheim in May is 8°C.

Does it rain in Trondheim in May?

There are usually 15 days with some rain in Trondheim in May and the average monthly rainfall is 53mm.

Trondheim May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 03:55 20:38
Friday, 16th May 2025 03:08 21:24
Saturday, 31st May 2025 02:28 22:07

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