Last year was the second ever warmest year in Finland, said the Finnish Meteorological Institute (FMI) in a press release on Friday.
The average temperature was 4.5 degrees Celsius in the whole country in 2025, which is 1.6 degrees Celsius higher than the long-term average for the years 1991-2020.
The year 2020 is the ever warmest year in Finnish history when the average temperature in the country stood at 4.8 degrees Celsius.
The average annual temperature in 2025 varied from about 8 degrees Celsius in the southwestern archipelago to about zero degrees Celsius in the northwestern part of Lapland.
The average temperatures were 1-2 degrees Celsius higher than normal in most parts of the country.
The average temperatures in May, June and August were slightly lower than normal in whole country while the average temperatures in the rest nine months were higher than normal.
The highest temperature of 2025 was 32.6 degrees Celsius recorded in Oulu on July 31 while the lowest temperature minus 39.6 degrees Celsius was recorded in Savukoski on February 4.
A large proportion of observation stations in the southern and central parts of the country recorded a 20-day heatwave starting from 12 July. Altogether there were 23 hot days in July, when the highest temperature of the day exceeded 25°C somewhere in Finland. This is seven days more than the July average.
In addition, on each day from 12 July onwards, the highest temperature in the whole country was over 30°C. Consequently, a total of 20 days with temperatures above 30°C were seen in July.
From 1961 onwards, this is the longest period with temperatures above 30°C in Finland; the previous record for hot weather above 30°C in the measurement history was a 13-day heatwave in 1972.
- Finland
- Second
- Warmest
- Year
- 2025
Source: www.dailyfinland.fi
