Oslo weather in May 2025

Expect 59°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Oslo in May. Check more long-term weather averages for Oslo in May before you book your next holiday to Norway in 2025/2026.

  • 59°F maximum daytime temperature in May in Oslo59
    59°F max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in May in Oslo14
    14 days with some rainfall
  • 41°F minimum night-time temperature in May in Oslo41
    41°F min night temperature
  • 17 hours of daylight per day in May in Oslo17
    17 hours of daylight per day
  • No heat & humidity in May in Oslo0
    No heat & humidity
  • 2.2 inches monthly rainfall in May in Oslo2.2
    2.2 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in May in Oslo4
    4 (Moderate) UV index
  • 48°F sea temperature in May in Oslo48
    48°F sea temperature

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The May weather guide for Norway (Oslo) 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 warm is it in Oslo in May?

Daytime temperatures usually reach 59°F in Oslo in May, falling to 41°F at night.

How sunny is it in Oslo in May?

There are normally 7 hours of bright sunshine each day in Oslo in May - that's 41% of daylight hours.

How warm is the sea around Oslo in May?

The average sea temperature around Oslo in May is 48°F.

Does it rain in Oslo in May?

There are usually 14 days with some rain in Oslo in May and the average monthly rainfall is 2.2 inches.

Oslo May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:15 20:15
Friday, 16th May 2025 03:37 20:51
Saturday, 31st May 2025 03:08 21:22

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