Chamonix weather in October
October in Chamonix: cool, soaked, with clean air — a hit-or-miss time to visit.
#8 of 12 months in Chamonix · #598 of 604 destinations to visit in October · comfort 46/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Chamonix climate normals — October
| Daytime high | 15°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 6°C / 43°F | |
| Feels like (high) | 14°C / 57°F | |
| Rainfall | 159 mm / 6.2 in | ⛈ soaked |
| Rainy days | 14 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 9°C / 48°F | |
| Sunshine | 7.1 h/day | |
| Daylight | 10.9 h | |
| Wind | 7 km/h / 4 mph | |
| Snowfall | 14.4 cm / 5.7 in | |
| Air quality (US AQI) | 29 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Chamonix?
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Chamonix in October — FAQ
- Is October a good time to visit Chamonix?
- October in Chamonix: cool, soaked, with clean air — a hit-or-miss time to visit. It ranks #8 of 12 months for Chamonix on SeasonMap's comfort score (46/100).
- What is the weather like in Chamonix in October?
- In October, Chamonix averages a daily high of 15.4°C and a low of 6°C, with about 158.7 mm of rain over roughly 14.4 rainy days.
- What is the air quality in Chamonix in October?
- Chamonix has a mean US Air Quality Index of about 29 in October.
- Does it snow in Chamonix in October?
- Chamonix sees roughly 14.4 cm of snowfall in October.