Chamonix weather in July
July in Chamonix: warm, soaked, with clean air — one of the weakest months to visit.
#12 of 12 months in Chamonix · #602 of 604 destinations to visit in July · comfort 15/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Chamonix climate normals — July
| Daytime high | 23°C / 74°F | 🌤 warm |
|---|---|---|
| Nighttime low | 14°C / 57°F | |
| Feels like (high) | 25°C / 77°F | |
| Rainfall | 155 mm / 6.1 in | ⛈ soaked |
| Rainy days | 17 days | |
| Humidity | 69% | 💧 humid |
| Dew point | 13°C / 56°F | |
| Sunshine | 11.7 h/day | |
| Daylight | 15.3 h | |
| Wind | 7 km/h / 5 mph | |
| Air quality (US AQI) | 38 | 🍃 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 July — FAQ
- Is July a good time to visit Chamonix?
- July in Chamonix: warm, soaked, with clean air — one of the weakest months to visit. It ranks #12 of 12 months for Chamonix on SeasonMap's comfort score (15/100).
- What is the weather like in Chamonix in July?
- In July, Chamonix averages a daily high of 23.3°C and a low of 13.7°C, with about 155 mm of rain over roughly 17.4 rainy days.
- What is the air quality in Chamonix in July?
- Chamonix has a mean US Air Quality Index of about 38 in July.