Daytime highs, nighttime lows and the warmest cities in Oslo County, Norway this September.
Oslo County, Norway, a region in Norway, typically experiences mild weather in September, with maximum daytime temperatures around 16°C (61°F) and nighttime temperatures around 7°C (45°F) in Oslo.
To get a sense of September's typical temperatures in the key spots of Oslo County, explore the map below. Click on a point for an in-depth look.
Check the conditions for any month of the year.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Oslo County.
Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
Daytime temperatures in Oslo typically peak at 16°C (61°F) in September, putting it in the moderate range.
After dark, Oslo cools to about 7°C (45°F) on an average September night.
Oslo enjoys a balanced 146 hours of sunlight. This makes it neither too overcast nor too sunny.
The water temperature averages approximately 14°C (57°F) in Oslo this month, generally too cold for comfortable swimming.
We have much more information about the climate in Oslo County.
Weather and climate has detailed information for every country in the world. Are you going to Norway? Get detailed historical weather averages for many cities in Norway.
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