December · France
Best time to visit Mont Blanc in December Weather, crowds & prices
Weather in Mont Blanc in December
Average temperature -3°C, 153 mm of rain, about 0 days with 6+ hours of sunshine and 82% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
1.8/10
Ranked #12 of 12 months
- Avg temp
- -3°C
- Rainfall
- 153 mm
- Humidity
- 82%
- Days with 6h+ sun
- 0
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Mont Blanc scores 1.8/10 for nature and wildlife travel - ranked #12 of 12. Expect around -3°C, 153 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.
Mont Blanc's massif rises above Chamonix and Courmayeur, with glaciers, cable cars and alpine trails.
December in Mont Blanc — off-season conditions
At -3°C (26°F) this is proper winter weather in December: layer up and split the day between outdoor highlights and indoor stops.
153 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with almost no days with 6+ hours of sunshine and 8.5 hours of daylight.
That is 1.8/10 on the same scale — 12th of 12 months, versus 9.2/10 for the best month here.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, July is materially better in Mont Blanc — 7.4 points higher on the same scale.
Frequently asked
- What is the weather like in Mont Blanc in December?
- In December, Mont Blanc averages -3°C, 153 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 1.8/10.
- Is December a good time to visit Mont Blanc?
- December earns a 1.8/10 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 December?
- Expect about 153 mm of rain in December. Average humidity is 82% and there are about 0 days with 6+ hours of sunshine.
Curated in Mont Blanc
Tickets & experiences
Things to do in Mont Blanc
Mont Blanc, France. Live activities and tours from GetYourGuide, matched to this destination.