December weather forecast
Marolles-lès-Saint-Calais, France

December

Weather in December

The first month of the winter, December, is also a frosty month in Marolles-lès-Saint-Calais, France, with an average temperature varying between 8.2°C (46.8°F) and 3.2°C (37.8°F).

Temperature

Transitioning into December, Marolles-lès-Saint-Calais records an average high-temperature of a chilly 8.2°C (46.8°F), almost identical to November's 11.1°C (52°F). During the nights of December, Marolles-lès-Saint-Calais records an average temperature of 3.2°C (37.8°F), a minor drop from daytime peaks.

Humidity

The months with the highest humidity are January and December, with an average relative humidity of 88%.

Rainfall

In December, in Marolles-lès-Saint-Calais, the rain falls for 11.6 days. Throughout December, 29mm (1.14") of precipitation is accumulated. Throughout the year, in Marolles-lès-Saint-Calais, there are 147.2 rainfall days, and 323mm (12.72") of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Marolles-lès-Saint-Calais. In Marolles-lès-Saint-Calais, during December, snow falls for 0.5 days and regularly aggregates up to 3mm (0.12") of snow. In Marolles-lès-Saint-Calais, during the entire year, snow falls for 3.3 days and aggregates up to 20mm (0.79") of snow.

Daylight

With an average of 8h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:25 and sunset at 17:06. On the last day of December, in Marolles-lès-Saint-Calais, sunrise is at 08:46 and sunset at 17:13 CET.

Sunshine

In Marolles-lès-Saint-Calais, the average sunshine in December is 4.5h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 2 during December leads to these advisories:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Stay sun-safe with clothing that is both closely woven and worn loosely. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

What is the average December temperature in Marolles-lès-Saint-Calais?
The average high-temperature and low-temperature during December are 8.2°C (46.8°F) and 3.2°C (37.8°F) respectively.
What are the most humid months in Marolles-lès-Saint-Calais?
The months with the highest humidity in Marolles-lès-Saint-Calais are January and December, with an average relative humidity of 88%.
What is the average humidity in December in Marolles-lès-Saint-Calais?
In December, the average relative humidity in Marolles-lès-Saint-Calais is 88%.
How many days does it rain in December in Marolles-lès-Saint-Calais?
In Marolles-lès-Saint-Calais, during December, the rain falls for 11.6 days and regularly aggregates up to 29mm (1.14") of precipitation.
How many days does it snow in December in Marolles-lès-Saint-Calais?
In Marolles-lès-Saint-Calais, in December, snow falls for 0.5 days, with typically accumulated 3mm (0.12") of snow.
What is the month with the shortest days in Marolles-lès-Saint-Calais?
The month with the shortest days in Marolles-lès-Saint-Calais is December, with an average of 8h and 30min of daylight.
What is the average length of the day in December in Marolles-lès-Saint-Calais?
The average day length in December in Marolles-lès-Saint-Calais, France, is 8h and 28min.
When is the sunrise / sunset in December in Marolles-lès-Saint-Calais?
On the first day of December in Marolles-lès-Saint-Calais, sunrise is at 08:25 and sunset at 17:06. On the last day of the month, sunrise is at 08:46 and sunset at 17:13 CET.
How long on average sun shines in December in Marolles-lès-Saint-Calais?
The average sunshine duration in December in Marolles-lès-Saint-Calais is 4.5h.
When is the lowest UV index in Marolles-lès-Saint-Calais?
The months with the lowest UV index in Marolles-lès-Saint-Calais are January, February, November and December, with an average maximum UV index of 2.
What is the UV index reading in December in Marolles-lès-Saint-Calais?
The average daily maximum UV index in December in Marolles-lès-Saint-Calais is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Marolles-lès-Saint-Calais, France
  • Average high temperature in December: 8.2°C

The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (7.1°C).

  • Average low temperature in December: 3.2°C

The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).

Average pressure in December
Marolles-lès-Saint-Calais, France
  • Average pressure in December: 1018.9mbar

The month with the highest atmospheric pressure is December (1018.9mbar).
The month with the lowest atmospheric pressure is November (1013.5mbar).

Average wind speed in December
Marolles-lès-Saint-Calais, France
  • Average wind speed in December: 16.1km/h

The windiest month (with the highest average wind speed) is February (17km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).

Average humidity in December
Marolles-lès-Saint-Calais, France
  • Average humidity in December: 88%

The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (74%).

Average rainfall in December
Marolles-lès-Saint-Calais, France
  • Average rainfall in December: 29mm

The wettest month (with the highest rainfall) is May (40mm).
The driest month (with the least rainfall) is September (16mm).

Average rainfall days in December
Marolles-lès-Saint-Calais, France
  • Average rainfall days in December: 11.6 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is September (8.5 days).

Average snowfall in December
Marolles-lès-Saint-Calais, France
  • Average snowfall in December: 3mm

The month with the highest snowfall is January (6mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Marolles-lès-Saint-Calais, France
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is January (1.3 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
Marolles-lès-Saint-Calais, France
  • Average daylight in December: 8h and 3min

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 30min).

  • Average sunshine in December: 4h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in December
Marolles-lès-Saint-Calais, France
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is September (19.6 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
Marolles-lès-Saint-Calais, 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
Marolles-lès-Saint-Calais, France
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 38).

Average visibility in December
Marolles-lès-Saint-Calais, France
  • Average visibility in December: 9km

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

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