What is the weather like in Courmayeur vs Zermatt in September?

In September, Courmayeur averages 18°C high / 10°C low with about 81 mm of rain; Zermatt averages 17°C high / 7°C low with about 142 mm.

Courmayeur vs Zermatt in September

Zermatt is the better pick in September — 27 vs 22 on SeasonMap's comfort score. Zermatt is nice, rainy, clean air, while Courmayeur is nice, rainy, clean air.

Courmayeur vs Zermatt — September climate, side by side

	🇮🇹 Courmayeur	🇨🇭 Zermatt
Comfort score	22/100 (F)	27/100 (F)
Feels-like high	18°C	17°C
Avg high / low	18° / 10°	17° / 7°
Rainfall	81 mm	142 mm
Rainy days	13	18
Humidity	79%	82%
Air quality (AQI)	38	37

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

Month by month

Courmayeur vs Zermatt in September — FAQ

Is September better in Courmayeur or Zermatt?: Zermatt is the better pick in September — 27 vs 22 on SeasonMap's comfort score. Zermatt is nice, rainy, clean air, while Courmayeur is nice, rainy, clean air.
What is the weather like in Courmayeur vs Zermatt in September?: In September, Courmayeur averages 18°C high / 10°C low with about 81 mm of rain; Zermatt averages 17°C high / 7°C low with about 142 mm.