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

In September, Copenhagen averages 19°C high / 13°C low with about 66 mm of rain; Trondheim averages 16°C high / 8°C low with about 96 mm.

Copenhagen vs Trondheim in September

Copenhagen is the better pick in September — 82 vs 75 on SeasonMap's comfort score. Copenhagen is nice, a little rain, clean air, while Trondheim is cool, rainy, clean air.

Copenhagen vs Trondheim — September climate, side by side

	🇩🇰 Copenhagen	🇳🇴 Trondheim
Comfort score	82/100 (A)	75/100 (B)
Feels-like high	17°C	15°C
Avg high / low	19° / 13°	16° / 8°
Rainfall	66 mm	96 mm
Rainy days	10	12
Humidity	79%	83%
Air quality (AQI)	42	27

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

Month by month

Copenhagen vs Trondheim in September — FAQ

Is September better in Copenhagen or Trondheim?: Copenhagen is the better pick in September — 82 vs 75 on SeasonMap's comfort score. Copenhagen is nice, a little rain, clean air, while Trondheim is cool, rainy, clean air.
What is the weather like in Copenhagen vs Trondheim in September?: In September, Copenhagen averages 19°C high / 13°C low with about 66 mm of rain; Trondheim averages 16°C high / 8°C low with about 96 mm.