Norway

Temperature trends in Oslo

10 weather stations · coverage 1901–2025

Oslo · europe · population ~1.1MGoogle Maps · Terms

Primary weather station near Oslo with the most complete temperature record

BYGDOEY

Station record

Station id
18904
Source
ECAD
Record
1901–2025
Years
92
Warmest year
2025 (9.43°C)
Coldest year
1985 (4.21°C)
Trend since 1980
+0.56°C / decade

BYGDOEY

19012025 · Oslo, Norway

First 10 years (1901–1910): 6.17 °C · Last 10 years (2016–2025): 8.02 °C · Gap: +1.85 °C

Annual mean temperatures — ECAD source.

Climate trends at Oslo (1901–2025)

Oslo, the capital of Norway, is experiencing significant climate changes. With a population of over a million, this vibrant city is not only known for its rich history and culture but also for its evolving climate. Multiple weather stations in the region, including BYGDOEY, provide valuable data on temperature trends, which help us understand the broader climate changes affecting the area.

According to the data, the mean temperature in Oslo has risen from 6.17°C during the period of 1901–1910 to 8.02°C in the most recent decade of 2016–2025. This represents a warming of 1.85°C over the last century, highlighting a clear trend of increasing temperatures. In comparison, the mean temperature from 1991 to 2020 was recorded at 7.23°C, indicating a steady rise over the decades.

Trend Summary

The temperature trends in Oslo show a notable increase, with an approximate warming of 1.88°C since 1980. The trend per decade from 1980 has been approximately 0.565°C, while the trend from 1960 has been slightly lower at 0.428°C. Such increases in temperature can lead to more frequent heat waves and heightened drought risk in the region.

Climate change impacts

The impacts of climate change in Oslo are becoming increasingly evident. With rising temperatures, the city may face challenges such as more extreme weather events, altered precipitation patterns, and potential effects on local ecosystems. These changes can affect not only the natural environment but also the way of life for residents.

Comparison vs National Benchmark and Paris

When comparing Oslo's climate data to the national benchmark, the mean annual temperature from 1991 to 2020 for the top 500 cities in Norway was approximately 4.26°C. This indicates that Oslo's temperatures are significantly higher than the national average. Furthermore, Oslo's temperatures are approximately 5.37°C warmer than those observed in Paris, France.

Top-5 Warm Years

  • 2025: 9.43°C
  • 2022: 9.08°C
  • 2020: 8.73°C
  • 2014: 8.49°C
  • 2024: 8.4°C

The record coldest temperature in Oslo was noted in 1985, at 4.21°C. As the city continues to warm, it is essential to monitor these trends closely.

For more detailed data, you can access the raw data in CSV/TXT format or JSON format. Additionally, explore our interactive map for more insights.

Frequently asked questions

Which weather station is used for Oslo?
Statistics on this page come from the BYGDOEY station, id 18904, ECAD source.
How long is the temperature record in Oslo?
The record runs from 1901 to 2025 (92 years with data).
How much has Oslo warmed?
The annual mean changed by +1.85°C from 1901–1910 to 2016–2025 (first 10 vs last 10 years of the series).
What was the warmest year on record in Oslo?
The warmest year in this series is 2025 (annual mean 9.43°C).
What is the decade trend since 1980 in Oslo?
The linear trend since 1980 is +0.56°C per decade.

Downloads — primary station

Station: BYGDOEY (ECAD 18904).

Fossil CO₂ emissions (ODIAC) in the grid cell for Oslo

1° gridded estimate (fossil carbon surface flux integrated over the calendar year, 2000–2023) for the grid cell that contains the city: the plotted value is a surface emission intensity (gC/m²/yr), comparable across regions, not local air CO₂ concentration (wind and mixing are not represented here).

CO₂ page (ODIAC map, Keeling…)

ODIAC 1°×1° grid cell (centre ≈ 59.5°, 10.5°).

All other weather stations near Oslo

Here are the 9 other stations linked to this page near Oslo, with data that typically span 1901–2025, depending on the site.