Bergen Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows both the average monthly rainfall and the number of rainy days in Bergen, Hordaland, Norway. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let’s break down all the details for a clearer picture.
Bergen is known for its substantial rain/snowfall, with annual precipitation reaching 2493 mm.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
Bergen offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between December (269 mm) and May (127 mm) is not too significant, making the climate enjoyable for visitors and residents alike.
December, the wettest month, has a maximum daytime temperature of 5°C. The city receives 13 hours of sunshine in this period. During the driest month May you can expect a temperature of 14°C. For more detailed insights into the city’s temperatures, visit our Bergen Temperature page.
Annual Precipitation in Norway
The map below shows the annual precipitation across Norway. You can also select the different months in case you are interested in a specific month.





Amsterdam Precipitation Compared World Wide
Bergen’s average annual precipitation is 2493 mm. Let’s compare this to some popular worldwide tourist destinations:
In Lisbon, Portugal, the average annual precipitation is 774 mm, characterized by wet winters and dry summers typical of the Mediterranean climate.
In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.
Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.
How is Precipitation Measured?
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
Interesting weather facts
- "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
- The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm wide and 20 cm thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
- The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters fell during the winter of 1972.
For more detailed information about Bergen’s weather, including sunshine hours, humidity levels, and temperature data, visit our Bergen Climate page.