Vestersjø Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Vestersjø.
Climate overview of Vestersjø
The climate in Vestersjø, Norway, is marked by large temperature swings across the seasons, ranging from 20°C (68°F) in July to 4°C (39°F) in January.
The city has a wet climate, receiving around 2269 mm (89 in) of rain/snowfall per year. Despite the high annual total, it has a distinct rainy season from August to February, with pleasant summers and cold winters. December is the wettest month. May is the sunniest month, averaging 7.5 hours of sunshine per day.
Vestersjø Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Vestersjø - and find the best time to visit.
Monthly Temperature in Vestersjø
In Vestersjø, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a pleasant 20°C (68°F) in July to a chilly 4°C (39°F) in January.
Nighttime temperatures range from 11°C (52°F) in July to -2°C (28°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Vestersjø
Vestersjø experiences significant rain/snowfall throughout the year, averaging 2269 mm (89 in) of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 240 mm (9.4 in) of snow/rainfall, perfect for those who enjoy a bit of snow/rain now and then. The driest month, May, still receives a respectable 125 mm (4.9 in) of rainfall. For more details, please visit our Vestersjø 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 Vestersjø
In Vestersjø, summer days are longer and more sunny, with daily sunshine hours peaking at 7.5 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.1 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Vestersjø by Month
The relative humidity is high throughout the year in Vestersjø.
The city experiences its highest humidity in January, reaching 82%. In May, the humidity drops to its lowest level at 76%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Vestersjø
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July
- Warmest weather: July and August
- Most sunshine: May and June
- Seasonal pattern: A distinct rainy season from August to February, with pleasant summers and cold winters
- Coldest conditions: January, with freezing nights around -2°C (28°F).
Frequently asked questions about the climate in Vestersjø
What is the best time to visit Vestersjø?
July typically offers the most optimal weather in Vestersjø. In contrast, January, February, March, April, September, October, November and December tend to have less optimal conditions. Vestersjø has a distinct rainy season from August to February, with pleasant summers and cold winters.
What temperatures can I expect in Vestersjø?
Daytime highs range from 4°C (39°F) in January to 20°C (68°F) in July. Nighttime lows range from -2°C (28°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Vestersjø get?
Annual rainfall is around 2269 mm (89 in). December is the wettest month with 240 mm (9.4 in), while May is the driest with 125 mm (4.9 in). In the coldest months, precipitation may fall as snow/rain.
How sunny is Vestersjø?
Vestersjø receives around 1,543 hours of sunshine per year. May is the sunniest month with 226 hours, while December is the cloudiest with just 32 hours.
Vestersjø 3-Day Forecast
Vestersjø 3-Day Forecast
Vestersjø on the map
Vestersjø is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Oslo
22°C (72°F) Kristiansand
20°C (68°F) Trondheim20°C (68°F) Stavanger
18°C (64°F) Bergen
19°C (66°F) Hemsedal
17°C (63°F) Tromsø17°C (63°F) Reine14°C (57°F) 
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