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

In September, Stockholm averages 18°C high / 11°C low with about 43 mm of rain; Trondheim averages 16°C high / 8°C low with about 96 mm.

Stockholm vs Trondheim in September

Stockholm is the better pick in September — 81 vs 75 on SeasonMap's comfort score. Stockholm is nice, a little rain, clean air, while Trondheim is cool, rainy, clean air.

Stockholm vs Trondheim — September climate, side by side

	🇸🇪 Stockholm	🇳🇴 Trondheim
Comfort score	81/100 (A)	75/100 (B)
Feels-like high	17°C	15°C
Avg high / low	18° / 11°	16° / 8°
Rainfall	43 mm	96 mm
Rainy days	7	12
Humidity	80%	83%
Air quality (AQI)	37	27

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

Month by month

Stockholm vs Trondheim in September — FAQ

Is September better in Stockholm or Trondheim?: Stockholm is the better pick in September — 81 vs 75 on SeasonMap's comfort score. Stockholm is nice, a little rain, clean air, while Trondheim is cool, rainy, clean air.
What is the weather like in Stockholm vs Trondheim in September?: In September, Stockholm averages 18°C high / 11°C low with about 43 mm of rain; Trondheim averages 16°C high / 8°C low with about 96 mm.