What is the hottest temperature ever recorded in Finland?
The record, typical summer highs and how often heat waves happen.
Short answer
Finland's heat record is 37.2 °C, measured at Joensuu airport in Liperi, eastern Finland, on 29 July 2010. In an ordinary summer the highest readings inland are 32 to 35 °C, and near the sea they rarely go above 30 °C.
Why
- The Finnish Meteorological Institute gives the national record of 37.2 °C in Joensuu on 29 July 2010.
- Climateguide.fi says summer highs reach 32 to 35 °C inland and rarely exceed 30 °C near the sea.
- FMI says inland southern and central Finland has 10 to 15 days above 25 °C per summer.
Details
Finns call days above 25 °C hellepäivä, heat days. Many homes have no air conditioning, so hot spells can feel tiring indoors.
Tip
On hot days, swim in a lake or the sea. Public beaches are free, and lake water warms up quickly in July.
What may differ
Summers vary a lot. In July 2026 the highest reading in Finland was 31.1 °C, while some recent summers have had many more heat days.
Common misconception
It never gets hot in Finland.
What actually happens
Summer days above 30 °C happen in most years, and the record is 37.2 °C.
People also ask
- How hot does Finland get in summer?
- Does Finland have heat waves?
- What is the hottest month in Finland?
Sources
This answer is for reference only. Weather varies a lot from year to year, so check the forecast of the Finnish Meteorological Institute before you travel.
Weather & SeasonsRelated questions
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When does the snow melt in Finland?
Visit Finland says snow melts first on the southern coast, while Lapland keeps its snow into May.
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When does autumn start in Finland?
The Finnish Meteorological Institute says autumn begins when the daily mean temperature stays below 10 °C.
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What is the weather like in Helsinki in winter?
Visit Finland gives typical winter temperatures of -3 to -8 °C in Helsinki.
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When is the best time for skiing in Lapland?
Late winter and spring are the best time.