December weather forecastChamonix, France
December
Weather in December
By December, Chamonix unconditionally settles into the winter season. The temperatures plunge, and the landscape is enveloped in a cloak of snow. December receives the maximum snowfall, about 245mm (9.65"), indicating a promising ski season ahead. Despite the street-clearing challenges due to heavy snowfall, the holiday spirit keeps the town vibrant and festive, enchanting visitors with its winter wonderland aesthetic.Temperature
The average high-temperature in Chamonix, France, slightly decreases in December, shifting from a wintry 2.7°C (36.9°F) in November to a subzero cold -1°C (30.2°F). An average temperature of -9.5°C (14.9°F) is recorded in Chamonix, France, during the nights in December.Humidity
In December, the average relative humidity is 86%.Rainfall
The month with the most rainfall is December, when the rain falls for 7.7 days and typically aggregates up to 72mm (2.83") of precipitation.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall in Chamonix. Snow falls for 10.4 days and accumulates 245mm (9.65") of snow.Daylight
December has the shortest days of the year in Chamonix, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 07:54 and sunset at 16:49. On the last day of December, sunrise is at 08:14 and sunset at 16:57 CET.
Sunshine
December has the least sunshine of the year, with an average of 4.8h of sunshine.UV index
The average daily maximum UV index in December in Chamonix, France, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Chamonix, France
- Average high temperature in December: -1°C
The warmest months (with the highest average high temperature) are July and August (16.8°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in December: -9.5°C
The month with the highest average low temperature is July (6.7°C).
The coldest month (with the lowest average low temperature) is January (-11.4°C).
Average pressure in December
Chamonix, France
- Average pressure in December: 1020.9mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in December
Chamonix, France
- Average wind speed in December: 8.4km/h
The windiest month (with the highest average wind speed) is December (8.4km/h).
The calmest month (with the lowest average wind speed) is September (6.5km/h).
Average humidity in December
Chamonix, France
- Average humidity in December: 86%
The month with the highest relative humidity is March (91%).
The month with the lowest relative humidity is August (77%).
Average rainfall in December
Chamonix, France
- Average rainfall in December: 72mm
The wettest month (with the highest rainfall) is December (72mm).
The driest month (with the least rainfall) is September (15mm).
Average rainfall days in December
Chamonix, France
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is June (16.2 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in December
Chamonix, France
- Average snowfall in December: 245mm
The month with the highest snowfall is December (245mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Chamonix, France
- Average snowfall days in December: 10.4 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Chamonix, France
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Chamonix, France
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in December
Chamonix, France
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March and November (UV index 1).
Average cloud cover in December
Chamonix, France
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Chamonix, France
- Average visibility in December: 7km
The months with the highest visibility are June, July, August and October (8km).
The months with the lowest visibility are January, February and March (6km).
