🏔️ Note: Values from the wider area. Actual slope conditions vary by about ±5 °C depending on altitude — higher slopes are colder and more snow-reliable.
Ready for Chamonix?
Pick whatever suits you best.
📊 Monthly Climate Overview
| Month | Max °C | Min °C | Rain mm | Rain Days | Sun h | Wind km/h | Sea °C |
|---|---|---|---|---|---|---|---|
| Jan | 3.4°C | -4.3°C | 184.9 mm | ❄️ 14 | 5.8 h | 6.3 km/h | – |
| Feb | 5.8°C | -3.1°C | 140.8 mm | 13 | 7.0 h | 6.6 km/h | – |
| Mar | 8.5°C | -1°C | 153.9 mm | 14 | 8.6 h | 6.4 km/h | – |
| Apr | 11.9°C | 2°C | 124.6 mm | 14 | 10.1 h | 6.5 km/h | – |
| May | 15.1°C | 5.7°C | 203.9 mm | 19 | 10.3 h | 6.8 km/h | – |
| Jun | 20.4°C | 10.6°C | 139.8 mm | 18 | 12.2 h | 6.7 km/h | – |
| Jul | 22.8°C | 12.7°C | 133.4 mm | 15 | 12.3 h | 7.1 km/h | – |
| Aug | 22.2°C | 12.3°C | 123.4 mm | 14 | 11.1 h | 6.8 km/h | – |
| Sep | 18.5°C | 9.1°C | 99.9 mm | 13 | 9.9 h | 6.3 km/h | – |
| Oct | 15.1°C | 5.5°C | 117.4 mm | 12 | 8.1 h | 6.4 km/h | – |
| Nov | 8.6°C | 0.2°C | 157.2 mm | 14 | 6.1 h | 6.1 km/h | – |
| Dec | 5.1°C | -2.7°C | 187.5 mm | 14 | 5.6 h | 6.4 km/h | – |
📖Climate & Best Time to Visit Chamonix
Chamonix (France) has a alpine, snow-reliable climate with an annual average of around 9 °C. Daytime highs average 13 °C, while nights cool to about 4 °C. The destination sees roughly 1767 mm of rainfall per year and 8.9 hours of sunshine per day on average.
At the foot of Mont Blanc (4,808 m) — birthplace of mountaineering, host of the first Winter Olympics in 1924 and the legendary Vallée Blanche off-piste descent.
As a ski destination the prime season is clear: in January the daily mean drops to -0.4 °C — ideal for reliable snow. Values shown here reflect the wider area; in the valley it's a bit warmer, while pistes at 2,000–3,000 m altitude are correspondingly colder and more snow-secure.
Note: with roughly 27 °C between the hottest and coldest month, picking the right time of year matters a lot here.
🎟️ Top activities in Chamonix
🏡 How does it compare to home?
Enter your hometown — we’ll show you a direct climate comparison.
✨ Discover more of Chamonix
Frequently asked questions about Chamonix
When is the best time to ski in Chamonix?
The best time to ski in Chamonix: December to February – best in January (avg. -0.4 °C, 14 rainy days). Based on the monthly values for 2014 to 2023.
What are the temperatures in Chamonix?
The warmest month is July with an average of 17.8 °C and daytime highs around 22.8 °C. The coldest month is January with an average of -0.4 °C and night-time lows around -4.3 °C.
How many rainy days does Chamonix have?
May has the most rainy days with 19 rainy days. The driest month is October with 12 rainy days.