SeasonMapCourmayeur weather in August
Italy
August in Courmayeur: nice, rainy, with clean air — not the best time to visit.
#10 of 12 months in Courmayeur · #1319 of 1383 destinations to visit in August · comfort 17/100 (tier F)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Courmayeur in August
Notes from nearby Annecy (67 km away)
Courmayeur doesn't have its own notes for August yet — these are about Annecy, close enough to share the season.
Annecy's forum calls August normally hot and sunny, low-to-high 20s°C, though some years bring genuinely wet stretches. Regulars flag Alpine afternoon thunderstorms as a real possibility on the hottest days, and note evenings by the lake stay fresher thanks to a regular breeze — the lake itself is usually warm enough for a comfortable swim by early August.
Other months in Courmayeur
Courmayeur's forum flags January weather as genuinely volatile given its elevation and mountain setting — regulars say it's not unusual for conditions to shift substantially within the same day. Weekends bring day-trippers up from Milan for the Aosta Valley resorts, and the nearby Cogne and Rhêmes valleys are singled out for excellent cross-country skiing if the downhill slopes get crowded.
Add your own note from Courmayeur's card on the map.
Courmayeur climate normals — August
| Daytime high | 23°C / 73°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 56°F | |
| Feels like (high) | 23°C / 73°F | |
| Rainfall | 87 mm / 3.4 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 12°C / 54°F | |
| Sunshine | 11.3 h/day | |
| Daylight | 14.1 h | |
| Wind | 7 km/h / 4 mph | |
| Snowfall | 2.2 cm / 0.9 in | |
| Air quality (US AQI) | 40 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Courmayeur in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsFerragosto, Summer holidays in Italy, school holidays in 6 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Courmayeur's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherCourmayeur's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
What's on in Courmayeur in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Tour du Mont Blanc season
20 Jun – 20 Sep · usuallyTrail seasonBook earlyThe refuges on the Italian side of the circuit staff up once the cols clear, usually from late June. Beds on the route are the constraint and they go months ahead.
- Holiday
Ferragosto
5–25 AugSchool holidaysCrowdedThe town is a summer resort as much as a winter one and mid-August fills it, along with the queue for the Skyway cable car and the tunnel traffic through the valley. Source ↗
Nearby, and something's on
Within 300 km of Courmayeur — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Courmayeur?
Courmayeur in August — FAQ
- Is August a good time to visit Courmayeur?
- August in Courmayeur: nice, rainy, with clean air — not the best time to visit. It ranks #10 of 12 months for Courmayeur on SeasonMap's comfort score (17/100).
- What is the weather like in Courmayeur in August?
- In August, Courmayeur averages a daily high of 22.5°C and a low of 13.1°C, with about 87.4 mm of rain over roughly 13.1 rainy days.
- What is the air quality in Courmayeur in August?
- Courmayeur has a mean US Air Quality Index of about 40 in August.
- Does it snow in Courmayeur in August?
- Courmayeur sees roughly 2.2 cm of snowfall in August.
Other months in Courmayeur
Warmer or cooler than Courmayeur in August
Similar destinations in Southern Europe — August
Within 300 km: Chamonix's High mountain huts open around 15 Jun – 20 Sep, and Verbier's Verbier Festival around 15 Jul – 5 Aug.