What is the weather like in Basel vs Zürich in September?

In September, Basel averages 22°C high / 12°C low with about 64 mm of rain; Zürich averages 21°C high / 12°C low with about 105 mm.

Basel vs Zürich in September

Basel is the better pick in September — 91 vs 86 on SeasonMap's comfort score. Basel is nice, a little rain, clean air, while Zürich is nice, rainy, clean air.

Basel vs Zürich — September climate, side by side

	Basel	Zürich
Comfort score	91/100 (S)	86/100 (A)
Feels-like high	22°C	21°C
Avg high / low	22° / 12°	21° / 12°
Rainfall	64 mm	105 mm
Rainy days	9	10
Humidity	74%	78%
Air quality (AQI)	45	50

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

Basel vs Zürich in September — FAQ

Is September better in Basel or Zürich?: Basel is the better pick in September — 91 vs 86 on SeasonMap's comfort score. Basel is nice, a little rain, clean air, while Zürich is nice, rainy, clean air.
What is the weather like in Basel vs Zürich in September?: In September, Basel averages 22°C high / 12°C low with about 64 mm of rain; Zürich averages 21°C high / 12°C low with about 105 mm.