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It Has Never Been This Bad. This Is the First Year Like This in Norway
In the photo: sunrise over Sande in Vestfold. Fot. Vilde Jagland, Meteorologisk institutt
The year 2025 was the warmest year ever recorded in Norway. The average temperature was 1.5 degrees higher than the climate norm from 1991–2020. Compared to the pre-industrial period of 1871–1900, it was as much as 2.8 degrees higher.
The Norwegian Meteorological Institute conducted an attribution analysis of the annual average temperature in Norway. The study examines to what extent global warming caused by human activity has affected temperature conditions in the country.
According to scientists, in 1900, reaching such temperatures would have been nearly impossible in many regions. The analysis is based on data from measurement stations operating for at least 100 years and on global climate models.
According to scientists, in 1900, reaching such temperatures would have been nearly impossible in many regions. The analysis is based on data from measurement stations operating for at least 100 years and on global climate models.
Alarming Data from Norway. Every Month Was Too Warm
All months of 2025 were warmer than the norm. For the first time since measurements began, not a single month was below average.
The highest deviations occurred in December, when the temperature was 3.0 degrees above the norm, and in July with a deviation of 2.8 degrees. The Trøndelag region recorded the warmest year in the history of measurements, with a deviation of 1.8 degrees.
The highest deviations occurred in December, when the temperature was 3.0 degrees above the norm, and in July with a deviation of 2.8 degrees. The Trøndelag region recorded the warmest year in the history of measurements, with a deviation of 1.8 degrees.
Temperatures in Norway. Comparison with the 1991-2020 average. Red indicates extreme heat.Norwegian Meteorological Institute
Hot and Rainy at the Same Time
The year 2025 was also the eighth wettest year since 1901. Nationwide, total precipitation was 10 percent higher than the norm.
The most rain fell in Trøndelag and northern Norway, where many areas were classified as very wet or extremely wet. In the southern part of the country, precipitation was mostly normal, with some local exceptions.
The most rain fell in Trøndelag and northern Norway, where many areas were classified as very wet or extremely wet. In the southern part of the country, precipitation was mostly normal, with some local exceptions.
Precipitation in Norway. Comparison with the 1991-2020 average. Navy blue indicates extreme wetness.Norwegian Meteorological Institute
Analyses show that temperatures similar to those of 2025 may occur more frequently in the future. By mid-century, such warm years may become typical for northern Norway, and in the south, they will no longer be rare. The data also show that conditions once considered nearly impossible are now becoming part of the current climate of the land of fjords.
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