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Oslo Monthly Climate Averages
Oslo is located in humid continental climate zone that is known for significant seasonal temperature variations warm or even hot summer and cold winter with roughly similar amounts of rainfall.
To help you choose the best time to travel, you can find climate data below on the weather in Oslo .
Month | t°C day |
t°C night |
mm rain |
daylight |
January | -1.8 | -6.8 | 49 | 7.8h |
February | -0.9 | -6.8 | 36 | 10h |
March | +3.5 | -3.3 | 47 | 12.6h |
April | +9.1 | +0.8 | 41 | 15.4h |
May | +15.8 | +6.5 | 53 | 18.3h |
June | +20.4 | +10.6 | 65 | 20.2h |
July | +21.5 | +12.2 | 81 | 19.1h |
August | +20.1 | +11.3 | 89 | 16.3h |
September | +15.1 | +7.5 | 90 | 13.5h |
October | +9.3 | +3.8 | 84 | 10.8h |
November | +3.2 | -1.5 | 73 | 8.4h |
December | -0.5 | -5.6 | 55 | 7h |
Best time with the soft weather for the sightseeing and long walks in Oslo are June, July, August.
Temperature in Oslo
The table shows that the hottest months in Oslo are July and June, during which the average daytime temperature reaches +21.5°C and the nighttime temperature falls to +12.2°C.
The coldest months are January and February, when the daily average temperature falls to -1.8°C, and drops to -6.8°C during the night.
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Sea temperature
The month with the highest average monthly temperature in the Oslofjord on the beaches of Oslo is August with 17.8 degrees.
The coldest water can be found in March — 3degrees C.
Precipitation
The largest amount of precipitation falls on average in September and August, up to 90mm, and the least in February and April — up to 36mm.