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Fornebu Weather and Climate: A Comprehensive Guide

The climate in Fornebu is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to very cold in the cooler months. It also has a notably wet climate with much precipitation. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

In Fornebu, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 22°C in July, the warmest time of the year, to a very cold -0°C during cooler months like January.

At night, temperatures typically drop to an average of around -7°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Fornebu experiences significant rain/snowfall throughout the year, averaging 1008 mm of precipitation annually. While rainfall varies throughout the year, each season offers its own charm. August brings wetter days averaging 110 mm of precipitation, spread over 17 rainy days.

In contrast, March experiences a drier climate, with about 57 mm of snow/rainfall spread across 14 snowy/rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Fornebu. 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 1.4 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Drammen, Norway (29 KM, 18 Miles).

Daily hours of sunshine

Data from: Drammen, Norway (29 KM, 18 Miles).

Forecast for Fornebu

Sat   Jan 11
-1°C | -8°C
NW 4 m/s
clear and no rain

clear and no rain

Sun   Jan 12
-6°C | -12°C
NW 2 m/s
broken clouds and no rain

broken clouds and no rain

Mon   Jan 13
3°C | -12°C
S 4 m/s
broken clouds and no rain

broken clouds and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Fornebu 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:
  • When is winter in Fornebu?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Fornebu?
    July has an average maximum temperature of 22°C and is the warmest month of the year.
  • Which is the coldest month in Fornebu?
    The coldest month is January with an average maximum temperature of -0°C.
  • Which is the wettest month in Fornebu?
    August tops the wettest month list with 110 mm of rainfall.
  • Which is the driest month in Fornebu?
    March is the driest month with 57 mm of precipitation.
  • Which is the sunniest month in Fornebu?
    May is the sunniest month with an average of 240 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.