December weather forecastBertry, France

December

Weather in December

The first month of the winter, December, is still a chilly month in Bertry, France, with an average temperature varying between 6.4°C (43.5°F) and 2.2°C (36°F).

Temperature

The onset of December entails a subtle temperature shift, as the average high-temperature eases from 9.4°C (48.9°F) in November to a still chilly 6.4°C (43.5°F). Throughout December, Bertry's nights experience a slight temperature dip to a wintry 2.2°C (36°F).

Humidity

The most humid month is December, with an average relative humidity of 89%.

Rainfall

December is the month with the most rainfall in Bertry. Rain falls for 16 days and accumulates 64mm (2.52") of precipitation.

Snowfall

Months with snowfall are January through March, October through December. In Bertry, in December, during 2.6 snowfall days, 16mm (0.63") of snow is typically accumulated. In Bertry, during the entire year, snow falls for 11.1 days and aggregates up to 92mm (3.62") of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 12min of daylight.
On the first day of December, sunrise is at 08:23 and sunset at 16:46. On the last day of the month, sunrise is at 08:44 and sunset at 16:53 CET.

Sunshine

In Bertry, France, the average sunshine in December is 4h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, an average UV index of 2 transforms into the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.

Frequently asked questions

An average high-temperature, in December, in Bertry, is 6.4°C (43.5°F) and the average low-temperature is 2.2°C (36°F).

With an average relative humidity of 89%, December is the most humid month in Bertry, France.

In Bertry, the average relative humidity in December is 89%.

The month with the most rainfall in Bertry is December, when the rain falls for 16 days and typically aggregates up to 64mm (2.52") of precipitation.

In Bertry, France, in December, it is raining for 16 days, with typically 64mm (2.52") of accumulated precipitation.

In Bertry, France, in December, snow falls for 2.6 days, with typically accumulated 16mm (0.63") of snow.

December has the shortest days of the year, with an average of 8h and 12min of daylight.

In December, the average day length in Bertry is 8h and 9min.

In December, on the first day of the month, sunrise is at 08:23 and sunset at 16:46. On the last day of the month, sunrise is at 08:44 and sunset at 16:53 CET.

In December, the average sunshine duration is 4h.

The months with the lowest UV index in Bertry are January, February, November and December, with an average maximum UV index of 2.

The average daily maximum UV index in December in Bertry, France, is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from 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
Bertry, France

  • Average high temperature in December: 6.4°C

The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (5.3°C).

  • Average low temperature in December: 2.2°C

The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (0.9°C).

Average pressure in December
Bertry, France

  • Average pressure in December: 1017.3mbar

The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).

Average wind speed in December
Bertry, France

  • Average wind speed in December: 17.3km/h

The windiest month (with the highest average wind speed) is February (17.4km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).

Average humidity in December
Bertry, France

  • Average humidity in December: 89%

The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (75%).

Average rainfall in December
Bertry, France

  • Average rainfall in December: 64mm

The wettest month (with the highest rainfall) is December (64mm).
The driest month (with the least rainfall) is April (26mm).

Average rainfall days in December
Bertry, France

  • Average rainfall days in December: 16 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is September (12 days).

Average snowfall in December
Bertry, France

  • Average snowfall in December: 16mm

The month with the highest snowfall is January (36mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).

Average snowfall days in December
Bertry, France

  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is February (3.8 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
Bertry, France

  • Average daylight in December: 8h and 12min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in December
Bertry, France

  • Average sunshine days in December: 10.5 days

The month with the most sunshine days is March (15.8 days).
The month with the least sunshine days is February (9.6 days).

Average UV index in December
Bertry, France

  • Average UV index in December: 2

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

Average cloud cover in December
Bertry, France

  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 40).

Average visibility in December
Bertry, France

  • Average visibility in December: 9km

The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).