Oslo Climate by Month
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, 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.
During summer Oslo is pleasantly warm. Occasionally Oslo experience heat waves from May to August with temperatures up to 33°C. Oslo is not particularly rainy, but rain is seen throughout the year.
Average day and night temperature
In Oslo, temperatures differ significantly between summer and winter months. Average daytime temperatures range from a comfortable 22°C in July, the warmest time of the year, to a very cold -1°C during cooler months like February. At night, temperatures typically average around -7°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
On average, Oslo receives a reasonable amount of rain/snowfall, with an annual precipitation of 982 mm. While rainfall varies throughout the year, each season offers its own charm. August brings wetter days averaging 112 mm of precipitation, spread over 16 rainy days. In contrast, March experiences a drier climate, with about 54 mm of snow/rainfall spread across 14 snowy/rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
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.Monthly hours of sunshine
Daily hours of sunshine
Average water temperature
The mean water temperature over the year in Oslo ranges from 2°C in February to 16°C in July.
Water temperature over the year
Average humidity
The relative humidity is moderate throughout the year in Oslo.
Relative humidity over the year
Average wind speed
The mean wind speed over the year in Oslo ranges from 1°C in February to 2°C in January.
The mean monthly wind speed over the year (meters per second)
The best time of year to visit Oslo in Norway
During the months of July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
The coldest season / winter is in the following months: January, February and December.
July has an average maximum temperature of 22°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of -1°C.
August tops the wettest month list with 112 mm of rainfall.
March is the driest month with 54 mm of precipitation.
May is the sunniest month with an average of 241 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
