Chamonix vs Zermatt: which is better, month by month

Zermatt beats Chamonix in 4 of 12 months — its lead peaks in October (51 vs 33) — and they are within 3 points in the other 8 months.

Each place is scored under the lens that suits its type. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.

Chamonix

🇫🇷 France · mild climate

Best month: January 88/100
Months won: 0 of 12

Zermatt

🇨🇭 Switzerland · mild climate

Best month: January 90/100
Months won: 4 of 12

Chamonix vs Zermatt — all 12 months

Month	Chamonix	Zermatt	Winner	Gap
January	88Afreezing, soaked, clean air	90Sfreezing, rainy, clean air	Tie	2
February	81Acold, rainy, clean air	85Acold, a little rain, clean air	Zermatt	4
March	77Bcold, soaked, clean air	80Acold, rainy, clean air	Tie	3
April	60Ccool, rainy, clean air	63Ccold, rainy, clean air	Tie	3
May	42Fcool, soaked, clean air	44Fcool, soaked, clean air	Tie	2
June	12Fnice, soaked, clean air	19Fnice, soaked, clean air	Zermatt	7
July	14Fwarm, soaked, clean air	13Fwarm, soaked, clean air	Tie	1
August	16Fwarm, rainy, clean air	16Fwarm, soaked, clean air	Tie	0
September	21Fnice, rainy, clean air	27Fnice, rainy, clean air	Zermatt	6
October	33Fcool, rainy, clean air	51Dcool, soaked, clean air	Zermatt	18
November	72Bcold, soaked, clean air	75Bcold, rainy, clean air	Tie	3
December	83Acold, soaked, clean air	82Afreezing, rainy, clean air	Tie	1

A month is a tie when the two are within 3 points. The widest gap is October (33 vs 51). Tap a month for that month's temperature, rain, humidity and air quality side by side.