Courmayeur weather in August

August in Courmayeur: nice, rainy, with clean air — not the best time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Courmayeur🇮🇹 Italy · Alps · Ski17
  1. 90Jan
  2. 82Feb
  3. 80Mar
  4. 68Apr
  5. 50May
  6. 14Jun
  7. 12Jul
  8. 17Aug
  9. 22Sep
  10. 39Oct
  11. 75Nov
  12. 86Dec

#10 of 12 months in Courmayeur · #1345 of 1413 destinations to visit in August · comfort 17/100 (tier F)

Days
23°C
Nights
13°C
Wet days
13
Sun
11.3 h
Humidity
73%
Daylight
14 h
Courmayeur, Italy
Photo: Domenico Bertazzo · Pexels

Traveller notes on Courmayeur in August

Courmayeur-forum threads for first-timers describe early August as genuinely cool for an evening out, a light jacket recommended for dinner even after a warm afternoon. Posters name early June through mid-August as the prime hiking window, trails through Val Ferret and Val Veny generally clear of lingering accumulation from the previous winter by this point. Regulars are consistent conditions at height, like the Punta Helbronner cable car station, run genuinely colder than town, roughly ten to fifteen degrees below whatever Courmayeur is experiencing. Trail conditions on the higher, more ambitious routes are called capable of deteriorating quickly after a storm, and posters recommend checking with the local tourism office before anything technical. August is repeatedly named one of the strongest months for a Mont Blanc summit attempt. The record: 22.5C days feeling like 21C, 13.1C nights, an extraordinarily high 154mm across over 13 days and 73 percent humidity.
CourmayeurAugustRegular · August · 1 month ago · Read more on Tripadvisor ↗

Other months in Courmayeur

Courmayeur-forum threads on a February visit describe the French and Italian sides as genuinely not interconnected for regular skiing, posters naming the Mont Blanc cable car as the real way across for freeriding into French terrain instead. Regulars call Courmayeur genuinely marketed as the sunny side of Mont Blanc, several posters naming this a real draw given how much sun the Italian side gets compared with shadier French slopes. Posters call the Vallee Blanche descent a real highlight for experienced skiers, several regulars naming this among the area's most famous off-piste routes. Regulars call February genuinely solid conditions here, several threads naming this why the resort stays popular through peak winter. Posters recommend a guide for the Vallee Blanche regardless of skill, several regulars calling this standard given how serious the glacier terrain gets. The record: 4.4C days, -3.4C nights, an extraordinarily high 91.4mm across over 11 days and 75 percent humidity.
CourmayeurFebruaryRegular · February · 1 month ago · Read more on Tripadvisor ↗
Courmayeur-forum threads on a May visit call the village genuinely doable this time of year, posters describing most shops, restaurants and museums as staying open regardless of the shoulder-season lull in tourist facilities specifically. Regulars call real accumulation still likely above roughly twenty-five hundred meters, a genuine factor for anyone hoping to hike or climb higher terrain this early. Posters recommend lower-elevation walks as the realistic May option, north-facing routes at altitude considered particularly slow to clear. Regulars call the drive from Milan straightforward, bus connections mentioned repeatedly for anyone without a car. Posters recommend real layers regardless of a mild valley forecast, conditions at elevation here running considerably colder than the town itself suggests. The record: 12.8C days feeling like 12C, 4.9C nights, an extraordinarily high 131.1mm across nearly 18 days and 78 percent humidity.
CourmayeurMayRegular · May · 1 month ago · Read more on Tripadvisor ↗
Courmayeur-forum threads on a late-September visit call mid-month possibly the best window of the year for hikers, posters describing most tourists gone, trails considerably less crowded and the weather often more stable with crisp, clear days. Regulars call this genuinely low season for the resort itself though, lifts, hotels and restaurants widely taking a break before the winter opening. Posters recommend checking specific business hours carefully, far fewer options open than during either peak season. Regulars call the Mont Blanc tunnel closed from September 1st through mid-December, a real factor for anyone combining this with a Chamonix side trip. Posters describe the scenery as still genuinely spectacular, autumn light bringing out real color in the valley below. Regulars recommend real layers regardless of forecast, mornings turning noticeably crisp at this elevation. The record: 18.4C days feeling like 18C, 9.5C nights, 80.6mm across over 13 days and 79 percent humidity.
CourmayeurSeptemberRegular · September · 1 month ago · Read more on Tripadvisor ↗
Courmayeur-forum threads on March snow describe conditions as generally holding up well enough to ski through the lifts closing around Easter, though posters call the resort's mountain location genuinely volatile, weather capable of shifting fast regardless of the broader forecast. Regulars call Courmayeur the sunnier side of Mont Blanc, some days seeing low visibility on the French side while the Italian slopes stay clear. Posters recommend real layers for the swing between a bright, comfortable midday and genuinely cold mornings and evenings. Regulars describe the Val Ferret cross-country loop and winter walking trail as a strong lower-effort alternative, well groomed and considerably calmer than the main slopes. Posters recommend checking current conditions on both sides of the massif first. The record: 6.1C days feeling like 4C, -2.2C nights, a notably high 79.6cm of fresh accumulation and 76 percent humidity.
CourmayeurMarchRegular · March · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Courmayeur's card on the map.

Courmayeur climate normals — August

Daytime high23°C / 73°F😎 nice
Nighttime low13°C / 56°F
Feels like (high)23°C / 73°F
Rainfall87 mm / 3.4 in🌧 rainy
Rainy days13 days
Humidity73%💧 humid
Dew point12°C / 54°F
Sunshine11.3 h/day
Daylight14.1 h
Wind7 km/h / 4 mph
Snowfall2.2 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)

JFMAMJJASOND

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.

JFMAMJJASOND

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 early

    The 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 holidaysCrowded

    The 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 ↗

What's on around the world in August →

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?

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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.

Within 300 km: Chamonix's High mountain huts open around 15 Jun – 20 Sep, and Verbier's Verbier Festival around 15 Jul – 5 Aug.