December weather forecastTrélévern, France
December
Weather in December
December, the first month of the winter in Trélévern, is still a cool month, with an average temperature ranging between min 7°C (44.6°F) and max 10.1°C (50.2°F).Temperature
December reports an average high-temperature of a still fresh 10.1°C (50.2°F), slightly varied from November's 12°C (53.6°F). December nights document an average temperature reading of 7°C (44.6°F).Humidity
In December, the average relative humidity is 83%.Rainfall
In Trélévern, France, during December, the rain falls for 21.2 days and regularly aggregates up to 74mm (2.91") of precipitation. In Trélévern, France, during the entire year, the rain falls for 214.5 days and collects up to 643mm (25.31") of precipitation.Snowfall
January through March, November and December are months with snowfall. In December, in Trélévern, it is snowing for 0.9 days. Throughout December, 9mm (0.35") of snow is accumulated. In Trélévern, during the entire year, snow falls for 4.5 days and aggregates up to 38mm (1.5") of snow.Daylight
With an average of 8h and 18min of daylight, December has the shortest days of the year.On the first day of December in Trélévern, sunrise is at 08:45 and sunset at 17:19. On the last day of the month, sunrise is at 09:06 and sunset at 17:26 CET.
Sunshine
In Trélévern, France, the average sunshine in December is 3.5h.UV index
The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 3 in December translates into this advice:
Exercise prevention - Precautions against solar damage are endorsed. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Trélévern, France
- Average high temperature in December: 10.1°C
The warmest month (with the highest average high temperature) is August (19.1°C).
The month with the lowest average high temperature is January (9°C).
- Average low temperature in December: 7°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (5.4°C).
Average pressure in December
Trélévern, France
- Average pressure in December: 1017.2mbar
The month with the highest atmospheric pressure is September (1018.2mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).
Average wind speed in December
Trélévern, France
- Average wind speed in December: 25.3km/h
The windiest months (with the highest average wind speed) are February and December (25.3km/h).
The calmest month (with the lowest average wind speed) is July (16.3km/h).
Average humidity in December
Trélévern, France
- Average humidity in December: 83%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are February, March, April, September and October (82%).
Average rainfall in December
Trélévern, France
- Average rainfall in December: 74mm
The wettest month (with the highest rainfall) is November (82mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in December
Trélévern, France
- Average rainfall days in December: 21.2 days
The month with the highest number of rainy days is November (21.7 days).
The month with the least rainy days is September (13.7 days).
Average snowfall in December
Trélévern, France
- Average snowfall in December: 9mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Trélévern, France
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Trélévern, France
- Average daylight in December: 8h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 3h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Trélévern, France
- Average sunshine days in December: 5.5 days
The month with the most sunshine days is September (11.1 days).
The month with the least sunshine days is November (4.8 days).
Average UV index in December
Trélévern, France
- Average UV index in December: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in December
Trélévern, France
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are April, July and September (Cloud cover 42).
Average visibility in December
Trélévern, France
- Average visibility in December: 9km
The months with the highest visibility are March, April, June, July and September (10km).
The months with the lowest visibility are January, February, May, August, October, November and December (9km).
