December weather forecastTrassanel, France

December

Weather in December

December, the first month of the winter in Trassanel, is also a frosty month, with an average temperature ranging between max 9.4°C (48.9°F) and min 3.5°C (38.3°F).

Temperature

The advent of December brings a slight shift in average high-temperature, moving from a fresh 12.4°C (54.3°F) in November to a frosty 9.4°C (48.9°F). During the nights in December, Trassanel observes an average low-temperature of 3.5°C (38.3°F).

Humidity

January, November and December, with an average relative humidity of 81%, are the most humid months in Trassanel.

Rainfall

In December, the rain falls for 10.9 days. Throughout December, 24mm (0.94") of precipitation is accumulated. In Trassanel, during the entire year, the rain falls for 137.8 days and collects up to 335mm (13.19") of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Trassanel, France, in December, during 1.4 snowfall days, 7mm (0.28") of snow is typically accumulated. In Trassanel, France, during the entire year, snow falls for 6.8 days and aggregates up to 40mm (1.57") of snow.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:03 and sunset at 17:15. On the last day of December, in Trassanel, France, sunrise is at 08:22 and sunset at 17:24 CET.

Sunshine

In December, the average sunshine is 6h.

UV index

The average daily maximum UV index in December in Trassanel is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.

Frequently asked questions

The average high-temperature and low-temperature during December are 9.4°C (48.9°F) and 3.5°C (38.3°F) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 30°C (86°F).

January, November and December, with an average relative humidity of 81%, are most humid months.

In December, the average relative humidity in Trassanel, France, is 81%.

In Trassanel, in December, during 10.9 rainfall days, 24mm (0.94") of precipitation is typically accumulated.

In Trassanel, France, in December, during 1.4 snowfall days, 7mm (0.28") of snow is typically accumulated.

December has the shortest days of the year in Trassanel, with an average of 9h and 0min of daylight.

In Trassanel, the average day length in December is 9h and 2min.

On the first day of December in Trassanel, France, sunrise is at 08:03 and sunset at 17:15. On the last day of the month, sunrise is at 08:22 and sunset at 17:24 CET.

In December, the average sunshine duration in Trassanel, France, is 6h.

In Trassanel, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Trassanel, France

  • Average high temperature in December: 9.4°C

The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (8.1°C).

  • Average low temperature in December: 3.5°C

The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is February (1.7°C).

Average pressure in December
Trassanel, France

  • Average pressure in December: 1021.3mbar

The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

Average wind speed in December
Trassanel, France

  • Average wind speed in December: 13.6km/h

The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is September (11.2km/h).

Average humidity in December
Trassanel, France

  • Average humidity in December: 81%

The months with the highest relative humidity are January, November and December (81%).
The month with the lowest relative humidity is August (65%).

Average rainfall in December
Trassanel, France

  • Average rainfall in December: 24mm

The wettest month (with the highest rainfall) is October (43mm).
The driest months (with the least rainfall) are August and September (16mm).

Average rainfall days in December
Trassanel, France

  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is April (13.5 days).
The month with the least rainy days is August (8.8 days).

Average snowfall in December
Trassanel, France

  • Average snowfall in December: 7mm

The month with the highest snowfall is February (13mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Trassanel, France

  • Average snowfall days in December: 1.4 days

The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Trassanel, France

  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 6h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

Average sunshine days in December
Trassanel, France

  • Average sunshine days in December: 14 days

The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is November (12.5 days).

Average UV index in December
Trassanel, France

  • Average UV index in December: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 2).

Average cloud cover in December
Trassanel, France

  • Average cloud cover in December: 37

The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December
Trassanel, France

  • Average visibility in December: 9km

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (9km).