Oslo Weather & Climate: Best Time to Visit
Many people picture Oslo as being a cold place to visit, but Oslo's temperatures are rather moderate for a city located as far north as it is. The average winter temperature in Oslo is only about -2°C (28°F), which is a bit warmer than the winter temperatures of most American and some European cities. Visitors however should be prepared for frost from late October until late March/early April. Only occasionally there is deep frost below -15°C (5°F).
During summer Oslo is pleasantly warm. Occasionally Oslo experience heat waves from May to August with temperatures up to 33°C (91°F). Oslo is not particularly rainy, but rain is seen throughout the year.
Monthly Temperature in Oslo
In Oslo, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 22°C (72°F) in July, the warmest time of the year, to a very cold -1°C (30°F) during cooler months like February.
At night, you can expect temperatures ranging from 12°C (54°F) in July to around -7°C (19°F) during February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Oslo
On average, Oslo receives a reasonable amount of rain/snowfall, with an annual precipitation of 982 mm (39 in). While rainfall varies throughout the year, each season offers its own charm. August brings wetter days averaging 112 mm (4.4 in) of precipitation, spread over 16 rainy days.
In contrast, the driest month March experiences a drier climate, with about 54 mm (2.1 in) of snow/rainfall spread across 14 snowy/rainy days. For more details, please visit our Oslo Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Oslo
Seasonal changes in sunshine hours are quite dramatic in Oslo. While May receives considerable daily sunshine with up to 8.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.3 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Water Temperature in Oslo
The mean water temperature over the year ranges from 2°C (36°F) in February to 16°C (61°F) in July.
Water temperature over the year
Humidity in Oslo by Month
The relative humidity is high throughout the year in Oslo.
The city experiences its highest humidity in November, reaching 86%. In May, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Oslo
The average wind speed over the year ranges from 1 m/s (2 knots) to 2 m/s (4 knots). It is lower in February and December and higher in January, March, April, May, June, July, August, September, October and November. What does this mean?
The mean monthly wind speed over the year (meters per second)
Oslo 3-Day Forecast
Check the conditions for any month of the year.
