What is the weather like in Copenhagen vs Oslo in September?

In September, Copenhagen averages 19°C high / 13°C low with about 66 mm of rain; Oslo averages 18°C high / 10°C low with about 93 mm.

Copenhagen vs Oslo in September

Copenhagen is the better pick in September — 82 vs 74 on SeasonMap's comfort score. Copenhagen is nice, a little rain, clean air, while Oslo is nice, rainy, clean air.

Copenhagen vs Oslo — September climate, side by side

	🇩🇰 Copenhagen	🇳🇴 Oslo
Comfort score	82/100 (A)	74/100 (B)
Feels-like high	17°C	16°C
Avg high / low	19° / 13°	18° / 10°
Rainfall	66 mm	93 mm
Rainy days	10	10
Humidity	79%	82%
Air quality (AQI)	42	38

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Copenhagen vs Oslo in September — FAQ

Is September better in Copenhagen or Oslo?: Copenhagen is the better pick in September — 82 vs 74 on SeasonMap's comfort score. Copenhagen is nice, a little rain, clean air, while Oslo is nice, rainy, clean air.
What is the weather like in Copenhagen vs Oslo in September?: In September, Copenhagen averages 19°C high / 13°C low with about 66 mm of rain; Oslo averages 18°C high / 10°C low with about 93 mm.