December weather forecastTrélivan, France

December

Weather in December

December, the first month of the winter in Trélivan, is still a chilly month, with an average temperature ranging between max 9.7°C (49.5°F) and min 6.2°C (43.2°F).

Temperature

The commencement of December records an average high-temperature of a frosty 9.7°C (49.5°F), barely varying from November's 12°C (53.6°F). During December, Trélivan's nighttime temperatures demonstrate a subtle cooling from daytime highs, stabilizing at a still chilly 6.2°C (43.2°F).

Humidity

The average relative humidity in December is 83%.

Rainfall

In Trélivan, in December, it is raining for 19.3 days, with typically 67mm (2.64") of accumulated precipitation. Throughout the year, there are 206.9 rainfall days, and 606mm (23.86") of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Trélivan. The month with the most snowfall in Trélivan, France, is December, when snow falls for 1 days and typically aggregates up to 11mm (0.43") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 24min of daylight.
On the first day of the month, sunrise is at 08:39 and sunset at 17:15. On the last day of December, in Trélivan, France, sunrise is at 08:59 and sunset at 17:23 CET.

Sunshine

In Trélivan, the average sunshine in December is 4h.

UV index

In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 3 suggests these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

The average high-temperature, in December, in Trélivan, is 9.7°C (49.5°F), while the average low-temperature is 6.2°C (43.2°F).

In Trélivan, France, the average relative humidity in December is 83%.

In Trélivan, in December, during 19.3 rainfall days, 67mm (2.64") of precipitation is typically accumulated.

The month with the most snowfall in Trélivan is December, when snow falls for 1 days and typically aggregates up to 11mm (0.43") of snow.

In Trélivan, in December, snow falls for 1 days, with typically accumulated 11mm (0.43") of snow.

December has the shortest days of the year, with an average of 8h and 24min of daylight.

In Trélivan, France, the average day length in December is 8h and 23min.

On the first day of December in Trélivan, France, sunrise is at 08:39 and sunset at 17:15. On the last day of the month, sunrise is at 08:59 and sunset at 17:23 CET.

In December, the average sunshine duration in Trélivan is 4h.

In Trélivan, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Trélivan, France

  • Average high temperature in December: 9.7°C

The warmest month (with the highest average high temperature) is August (21.3°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in December: 6.2°C

The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).

Average pressure in December
Trélivan, France

  • Average pressure in December: 1017.8mbar

The month with the highest atmospheric pressure is September (1018.2mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).

Average wind speed in December
Trélivan, France

  • Average wind speed in December: 22.3km/h

The windiest month (with the highest average wind speed) is December (22.3km/h).
The calmest month (with the lowest average wind speed) is August (14.3km/h).

Average humidity in December
Trélivan, France

  • Average humidity in December: 83%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is September (78%).

Average rainfall in December
Trélivan, France

  • Average rainfall in December: 67mm

The wettest month (with the highest rainfall) is November (72mm).
The driest month (with the least rainfall) is July (31mm).

Average rainfall days in December
Trélivan, France

  • Average rainfall days in December: 19.3 days

The month with the highest number of rainy days is January (20.2 days).
The month with the least rainy days is September (14.7 days).

Average snowfall in December
Trélivan, France

  • Average snowfall in December: 11mm

The month with the highest snowfall is December (11mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Trélivan, France

  • Average snowfall days in December: 1 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
Trélivan, France

  • Average daylight in December: 8h and 24min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Trélivan, France

  • Average sunshine days in December: 7.1 days

The month with the most sunshine days is September (12.3 days).
The months with the least sunshine days are January and November (6.6 days).

Average UV index in December
Trélivan, France

  • Average UV index in December: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 2).

Average cloud cover in December
Trélivan, France

  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 39).

Average visibility in December
Trélivan, France

  • Average visibility in December: 9km

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