Oulu weather in May 2025

Expect 54°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Oulu in May. Check more long-term weather averages for Oulu in May before you book your next holiday to Finland in 2025/2026.

  • 54°F maximum daytime temperature in May in Oulu54
    54°F max day temperature
  • 9 hours of sunshine per day
  • 11 days with some rainfall in May in Oulu11
    11 days with some rainfall
  • 37°F minimum night-time temperature in May in Oulu37
    37°F min night temperature
  • 19 hours of daylight per day in May in Oulu19
    19 hours of daylight per day
  • No heat & humidity in May in Oulu0
    No heat & humidity
  • 1.4 inches monthly rainfall in May in Oulu1.4
    1.4 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in May in Oulu3
    3 (Moderate) UV index
  • 30°F sea temperature in May in Oulu30
    30°F sea temperature

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The May weather guide for Finland (Oulu) 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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How warm is it in Oulu in May?

Daytime temperatures usually reach 54°F in Oulu in May, falling to 37°F at night.

How sunny is it in Oulu in May?

There are normally 9 hours of bright sunshine each day in Oulu in May - that's 45% of daylight hours.

How warm is the sea around Oulu in May?

The average sea temperature around Oulu in May is 30°F.

Does it rain in Oulu in May?

There are usually 11 days with some rain in Oulu in May and the average monthly rainfall is 1.4 inches.

Oulu May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 03:43 20:50
Friday, 16th May 2025 02:49 21:43
Saturday, 31st May 2025 01:59 22:36

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