Oslo weather

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The weather guide for Oslo, Norway shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in Oslo?

The hottest time of year in Oslo is normally July. Expect maximum daytime temperatures to reach 21°C.

Which month has the most rain in Oslo?

In terms of rainfall, September is usually the wettest month in Oslo with 94mm on average. There are normally 16 days in September with some rain.

When is it sunniest in Oslo?

The sunniest time of year in Oslo is normally June with bright sunshine on average for 45% of daylight hours; that's 8 hours of sunshine per day.

When is the sea warmest in Oslo?

The sea is usually at its warmest in Oslo in August when the water temperature reaches 18°C.

Metric (°C / mm)  |  Imperial (°F / inches)

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Compare Oslo weather with the USA

Below the Oslo weather chart shows average maximum daytime temperature for Oslo, Norway and the USA (Washington).

Maximum daytime temperature (°C)

Oslo, Norway
USA (Washington)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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Where's warm in Norway right now?

Below are the temperatures expected today at popular destinations in Norway. Select a destination to compare today's forecast with average weather conditions.

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