August · France
Best time to visit Mont Blanc in August Weather, crowds & prices
Weather in Mont Blanc in August
Average temperature 15°C, 82 mm of rain, about 26 days with 6+ hours of sunshine and 68% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
9.1/10
Ranked #2 of 12 months
- Avg temp
- 15°C
- Rainfall
- 82 mm
- Humidity
- 68%
- Days with 6h+ sun
- 26
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Mont Blanc scores 9.1/10 for nature and wildlife travel - one of the top 12-month picks (#2). Expect around 15°C, 82 mm of rain, and roughly 26 days with 6+ hours of sunshine this month.
Mont Blanc's massif rises above Chamonix and Courmayeur, with glaciers, cable cars and alpine trails.
August is one of the strongest months in Mont Blanc (2nd)
Temperatures hover around 15°C (60°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 82 mm of rain this month — a flexible day or two helps — with about 26 days with 6+ hours of sunshine and 13.9 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Mont Blanc at 9.1/10 (2nd of 12), just behind July at 9.2/10.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer, footwear you can get muddy.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Mont Blanc in August?
- In August, Mont Blanc averages 15°C, 82 mm of rain, and about 26 days with 6+ hours of sunshine. Its climate-comfort score is 9.1/10.
- Is August a good time to visit Mont Blanc?
- August earns a 9.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Mont Blanc in August?
- Expect about 82 mm of rain in August. Average humidity is 68% and there are about 26 days with 6+ hours of sunshine.
Curated in Mont Blanc
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Mont Blanc, France. Live activities and tours from GetYourGuide, matched to this destination.