Temperature
Pleasant by day, brisk at night.
71°Ftypical Aug high
Courmayeur is most comfortable in summer and early autumn. Summers are mild and winters are cold. Precipitation is frequent in most months. Humidity is usually low.

Pleasant by day, brisk at night.
Recurring showers across the month.
Cloudier spells limit sunshine.
It rarely feels hot or humid.
Partly cloudy across the month.
Want a side-by-side climate view? Compare Courmayeur with Chamonix.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 25, 2026
Data & methodology