Chamonix vs Courmayeur: which is better, month by month

Courmayeur beats Chamonix in 3 of 12 months — its lead peaks in April (68 vs 60) — and they are within 3 points in the other 9 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

Courmayeur

🇮🇹 Italy · mild climate

Best month: January 90/100
Months won: 3 of 12

Chamonix vs Courmayeur — all 12 months

Month	Chamonix	Courmayeur	Winner	Gap
January	88Afreezing, soaked, clean air	90Sfreezing, rainy, clean air	Tie	2
February	81Acold, rainy, clean air	82Acold, rainy, clean air	Tie	1
March	77Bcold, soaked, clean air	80Acold, rainy, clean air	Tie	3
April	60Ccool, rainy, clean air	68Ccold, rainy, clean air	Courmayeur	8
May	42Fcool, soaked, clean air	50Dcool, rainy, clean air	Courmayeur	8
June	12Fnice, soaked, clean air	14Fnice, rainy, clean air	Tie	2
July	14Fwarm, soaked, clean air	12Fnice, rainy, clean air	Tie	2
August	16Fwarm, rainy, clean air	17Fnice, rainy, clean air	Tie	1
September	21Fnice, rainy, clean air	22Fnice, rainy, clean air	Tie	1
October	33Fcool, rainy, clean air	39Fcool, rainy, clean air	Courmayeur	6
November	72Bcold, soaked, clean air	75Bcold, rainy, clean air	Tie	3
December	83Acold, soaked, clean air	86Afreezing, soaked, clean air	Tie	3

A month is a tie when the two are within 3 points. The widest gap is April (60 vs 68). Tap a month for that month's temperature, rain, humidity and air quality side by side.