Finns Love Outdoors

10 Fun to Know Facts About Summer Weather in Finland


What is summer weather like in Finland?
Well, if we believe the old Finnish saying “Finnish summer is short but at least there isn’t much snow” (in Finnish “Suomen kesä on lyhyt mutta vähäluminen”) we shouldn’t expect much of it. But although there are a bit’s of truth in it, the situation isn’t all that bad.

No, the summer weather in Finland is actually pretty good. Especially if we consider Finland’s northern location. In Finland summer days are long and the temperatures are usually very enjoyable. It doesn’t get too hot, but at its best it is still warm enough to enjoy beach days. Some days might be cloudy, it might rain, or thunder might strike, but it hardly ever snows!

And what comes to this Finnish saying mentioned earlier, we can consider is as a another example of dark Finnish humor. Finns are known to be modest, and if we don’t expect much, even a little sunshine feels like a great success 😀

10 Fun to Know Facts About Summer Weather in Finland

  • In southern Finland summer season usually begins in late May and ends in mid-September
  • Warmest summer days are usually experienced around July 20th
  • In Finland there are usually 10-15 hot days (in Finnish “hellepäiviä”) when temperature is above 25 °C
  • Longest heat wave in Finland (with temperature over 25 °C in consecutive days) lasted 31 days in Kouvola from June 18th until July 18th in 2021
  • In 1972, in Nellim in Inari, temperatures were over 30 °C for 10 consecutive days between June 30th and July 9th.
  • Highest temperature recorded in Finland is 37,2 °C. This was measured at the Joensuu Airport on July 29th in 2010
  • In Finland there are usually 8-14 thunderstorm days during summer
  • Wettest summer day in Finland was recorded in July 7th 1944 in Espoo when it rained is 198,4 mm of water in one day.
  • In southern Finland longest summer days are almost 19 hours long, while in northern Finland sun doesn’t set at all. These are called polar days (or midnight sun). Polar days can be experienced in the areas north of the Artic Circle
  • In northernmost Finland polar days last 73 days. That’s quite a long time to wait for next the sunset!

Finnish Meteorological Institute

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