Chamonix weather in December
December in Chamonix: cold, soaked, with clean air — a great time to visit.
#6 of 12 months in Chamonix · #236 of 604 destinations to visit in December · comfort 74/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Chamonix climate normals — December
| Daytime high | 3°C / 37°F | 🧥 cold |
|---|---|---|
| Nighttime low | -4°C / 24°F | |
| Feels like (high) | 0°C / 32°F | |
| Rainfall | 261 mm / 10.3 in | ⛈ soaked |
| Rainy days | 18 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | -3°C / 26°F | |
| Sunshine | 4.4 h/day | |
| Daylight | 8.7 h | |
| Wind | 8 km/h / 5 mph | |
| Snowfall | 145.3 cm / 57.2 in | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Chamonix in December — FAQ
- Is December a good time to visit Chamonix?
- December in Chamonix: cold, soaked, with clean air — a great time to visit. It ranks #6 of 12 months for Chamonix on SeasonMap's comfort score (74/100).
- What is the weather like in Chamonix in December?
- In December, Chamonix averages a daily high of 3°C and a low of -4.4°C, with about 261.1 mm of rain over roughly 17.8 rainy days.
- What is the air quality in Chamonix in December?
- Chamonix has a mean US Air Quality Index of about 34 in December.
- Does it snow in Chamonix in December?
- Chamonix sees roughly 145.3 cm of snowfall in December.