Mariehamn weather in June 2025

Expect 17°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Mariehamn in June. Check more long-term weather averages for Mariehamn in June before you book your next holiday to Finland in 2025/2026.

  • 17°C maximum daytime temperature in June in Mariehamn17
    17°C max day temperature
  • 9 hours of sunshine per day
  • 10 days with some rainfall in June in Mariehamn10
    10 days with some rainfall
  • 9°C minimum night-time temperature in June in Mariehamn9
    9°C min night temperature
  • 19 hours of daylight per day in June in Mariehamn19
    19 hours of daylight per day
  • No heat & humidity in June in Mariehamn0
    No heat & humidity
  • 33 mm monthly rainfall in June in Mariehamn33
    33 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in June in Mariehamn5
    5 (Moderate) UV index
  • 10°C sea temperature in June in Mariehamn10
    10°C sea temperature

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The June weather guide for Finland (Mariehamn) 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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How warm is it in Mariehamn in June?

Daytime temperatures usually reach 17°C in Mariehamn in June, falling to 9°C at night.

How sunny is it in Mariehamn in June?

There are normally 9 hours of bright sunshine each day in Mariehamn in June - that's 47% of daylight hours.

Is the sea cold around Mariehamn in June?

The average sea temperature around Mariehamn in June is 10°C.

Does it rain in Mariehamn in June?

There are usually 10 days with some rain in Mariehamn in June and the average monthly rainfall is 33mm.

Mariehamn June sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 03:28 21:49
Sunday, 15th June 2025 03:15 22:07
Monday, 30th June 2025 03:21 22:07

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