Oslo Weather in September
Norway · 30-year monthly averages
👍 Good time to visit
September in Oslo is mild, with average daytime highs around 16°C (62°F) and nighttime lows near 9°C (47°F). Expect roughly 82mm of precipitation spread over about 9 rainy days, with a moderate amount of rain.
Avg high
16°C
62°F
Avg low
9°C
47°F
Rainfall
82mm
moderate
Rainy days
9
days with ≥1mm
🎒 What to pack
- light jacket
- layers for cool evenings
September vs the rest of the year
FAQ
- How hot is Oslo in September?
- September in Oslo is mild, with average daytime highs around 16°C (62°F) and nighttime lows near 9°C (47°F). Expect roughly 82mm of precipitation spread over about 9 rainy days, with a moderate amount of rain.
- Does it rain a lot in Oslo in September?
- Oslo sees around 82mm of precipitation in September on average — moderate by global standards.
- Is September a good time to visit Oslo?
- September is a good month to visit Oslo, with generally agreeable conditions.