Chamonix-Mont-Blanc Weather in December
During December, Chamonix-Mont-Blanc experiences very low daytime temperatures of -2°C (28°F) and cooler nights around -11°C (12°F). As the wettest month of the year, and part of the winter season, expect frequent snowfall.
Rainfall in Chamonix-Mont-Blanc in December
Prepare for the heaviest rain of the year this month, which often comes in heavy showers. A poncho is a smart choice to stay dry. Past climate data indicates that roughly 16 days will see snow, totalling around 168 mm (6.6 in) for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Chamonix-Mont-Blanc in December
Daytime highs in Chamonix-Mont-Blanc in December reach -2°C (28°F), with nights around -11°C (12°F). Experience the winter season in December. It stays very cold throughout much of the day, so warm winter clothing is essential. With overnight lows of -11°C (12°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. This month is extremely cold, so be sure to dress in layers to keep warm. Proper preparation can help you stay comfortable.
Sunshine in Chamonix-Mont-Blanc in December
With limited sunshine this month, there are about 75 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Chamonix-Mont-Blanc. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit France, check out our Chamonix-Mont-Blanc's climate page.
Chamonix-Mont-Blanc Temperature in December
Min Temperature
-11°C (12°F)
Max Temperature
-2°C (28°F)
Chance of Rain
52%
Precipitation
168 mm (6.6 in)
Rainy days
16 days
Sunshine
75 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Chamonix-Mont-Blanc typically stay consistent throughout December, with daily highs averaging around -2°C (28°F). Nights are very cold, with lows around -3°C (27°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Chamonix-Mont-Blanc in December
Browse day-by-day weather records for Chamonix-Mont-Blanc spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Chamonix-Mont-Blanc historical weather extremes in December
The extremes listed below come from historical weather data collected in Chamonix-Mont-Blanc from 1976 through 2025.
- The lowest daytime temperature in December was -12°C (10°F), recorded on December 28, 2005.
- The coldest night in December in Chamonix-Mont-Blanc was on December 30, 2014, with a minimum of -17°C (1°F).
- Peak precipitation in December occurred on December 29, 2021, when 68 mm (2.7 in) of precipitation was measured.
Best Places in France in December
Find out more about the weather in France and which places have the best travel conditions in this month. See all of France in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Chamonix-Mont-Blanc in December
Winter clothing is essential for visiting Chamonix-Mont-Blanc in December. If you have a heavy coat, waterproof boots with good traction, and plenty of warm layers it's smart to bring them. Pack cloths like thermal underwear, wool socks, and insulated gloves. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Chamonix-Mont-Blanc in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit France, check out our Chamonix-Mont-Blanc's climate page.
See the full Chamonix-Mont-Blanc climate overview or explore weather in France.
