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When is the best time to visit Oslo?
In general the best time to visit Oslo is probably July, when the weather is usually great. The hottest months are June, July, August, while the coldest months are January, February, December.
Depending on the activities you want to experience, you may choose different months to visit:
- In general, it’s pleasant to walk and do outdoor activities during June - August.
- If you want to avoid wet weather, then your choice is January, November, December with the lowest chance of rain.
Average weather in Oslo in different months
This is the average weather in Oslo for each month based on historic data:
May, June, July, August usually has good weather. Average maximum temperature reaches +22°C during July.
In January, February, March, April, September, October, November, December the weather is average. Expect around 64 rainy days, and the precipitation amounts to approximately 114 mm in October.
Climate in Oslo
Here is the detailed breakdown of the climate in Oslo for each month:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum Temperature | |||||||||||
| +18°C | +20°C | +21°C | +25°C | +30°C | +33°C | +34°C | +33°C | +26°C | +19°C | +15°C | +13°C |
| Average Maximum Temperature | |||||||||||
| 0°C | +1°C | +5°C | +10°C | +16°C | +20°C | +22°C | +21°C | +16°C | +10°C | +4°C | +1°C |
| Minimum Temperature | |||||||||||
| -28°C | -28°C | -23°C | -9°C | -2°C | +3°C | +7°C | +5°C | -1°C | -7°C | -15°C | -26°C |
| Avg. water temperature | |||||||||||
| +8°C | +6°C | +5°C | +10°C | +14°C | +18°C | +19°C | +20°C | +18°C | +15°C | +12°C | +10°C |
| Humidity, % | |||||||||||
| 84 | 81 | 75 | 69 | 64 | 65 | 68 | 72 | 75 | 79 | 83 | 84 |
| Rain, mm | |||||||||||
| 29 | 30 | 26 | 45 | 81 | 89 | 100 | 108 | 94 | 114 | 70 | 34 |
| Snow, mm | |||||||||||
| 50 | 35 | 34 | 11 | 1 | 0 | 0 | 0 | 0 | 6 | 24 | 37 |
| Average wind speed, m/s | |||||||||||
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Sunny Days | |||||||||||
| 3 | 3 | 4 | 4 | 5 | 3 | 3 | 2 | 3 | 2 | 2 | 2 |
| Cloud Days | |||||||||||
| 13 | 12 | 14 | 12 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 14 |
| Rainy Days | |||||||||||
| 3 | 3 | 4 | 11 | 15 | 16 | 17 | 18 | 15 | 15 | 9 | 4 |
| Snowy Days | |||||||||||
| 12 | 10 | 9 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 7 | 11 |
Average Temperature
Here are the average maximum and minimum temperatures in Oslo during the whole year:
The hottest month in Oslo is July with average maximum temperature going up to +22°C. The coldest month is January with the lowest temperatures of -6°C.
Water temperature
Here are the water temperatures in Oslo during the whole year:
Oslo achieves its warmest water temperature in August, where the average sea temperature goes up to +18°C. Coldest water temperature is in March with +3°C in average.
Humidity
The temperature feels different depending on humidity. Here is how humidity in Oslo looks throughout the year, in %:
The most humid month in Oslo is December with average humidity going up to 84%. The least humid month is May with an average humidity of 64%.
Rain
Amount of rainfall in mm. in Oslo during the whole year based on historical data:
The sunniest and driest month is May with approximately 5 sunny days and a total precipitation of around 81 mm. The rainiest and wettest month is October with approximately 15 rainy days and 114 mm of total precipitation.
Snow
Amount of snow in mm. in Oslo during the whole year based on historical data:
The snowiest month is January with approximately 12 snowy days.
FAQ
Frequently asked questions about the weather in Oslo:
What is the hottest month in Oslo?
The hottest month in Oslo is July with average maximum temperature of +22°C.
What is the coldest month in Oslo?
The coldest month in Oslo is January with minimum temperatures of -6°C.
Is Oslo worth visiting in winter?
Winter in Oslo could be a good time to visit, as the weather is generally ok.
When does it rain the least in Oslo?
if you're looking to visit Oslo when it rains the least, you should plan your trip for October, August, July. During this time, rainfall is rare with the driest month being March with only 26 mm of rain.
Other cities in Norway
Check out the weather for other cities in Norway.
Monthly weather in Oslo
Source of the data
For this page, we’ve looked at the typical weather in Oslo, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.