December weather forecastMareil-sur-Mauldre, France

December

Weather in December

The first month of the winter, December, is also a frosty month in Mareil-sur-Mauldre, France, with temperature in the range of an average high of 7.4°C (45.3°F) and an average low of 2.6°C (36.7°F).

Temperature

The onset of December is marked by a minor decrease in temperature, transitioning from a fresh 10.5°C (50.9°F) in November to a chilly 7.4°C (45.3°F). In Mareil-sur-Mauldre, the December nights are characterized by an average low-temperature of 2.6°C (36.7°F), a minor dip from daytime readings.

Humidity

January and December, with an average relative humidity of 87%, are the most humid months.

Rainfall

In Mareil-sur-Mauldre, during December, the rain falls for 16.9 days and regularly aggregates up to 60mm (2.36") of precipitation. Throughout the year, there are 195 rainfall days, and 553mm (21.77") of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In December, in Mareil-sur-Mauldre, France, it is snowing for 1.8 days. Throughout December, 21mm (0.83") of snow is accumulated. In Mareil-sur-Mauldre, during the entire year, snow falls for 9.3 days and aggregates up to 73mm (2.87") of snow.

Daylight

December has the shortest days of the year in Mareil-sur-Mauldre, with an average of 8h and 18min of daylight.
On the first day of the month, sunrise is at 08:25 and sunset at 16:58. On the last day of December, in Mareil-sur-Mauldre, sunrise is at 08:45 and sunset at 17:05 CET.

Sunshine

The average sunshine in December is 4.2h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mareil-sur-Mauldre. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Frequently asked questions

December temperatures in Mareil-sur-Mauldre, France, vary between a high-temperature of 7.4°C (45.3°F) and a low-temperature of 2.6°C (36.7°F).

The months with the highest humidity in Mareil-sur-Mauldre are January and December, with an average relative humidity of 87%.

The average relative humidity in December is 87%.

In Mareil-sur-Mauldre, in December, it is raining for 16.9 days, with typically 60mm (2.36") of accumulated precipitation.

In Mareil-sur-Mauldre, in December, snow falls for 1.8 days, with typically accumulated 21mm (0.83") of snow.

With an average of 8h and 18min of daylight, December has the shortest days of the year in Mareil-sur-Mauldre.

In December, the average day length in Mareil-sur-Mauldre, France, is 8h and 20min.

On the first day of December in Mareil-sur-Mauldre, France, sunrise is at 08:25 and sunset at 16:58. On the last day of the month, sunrise is at 08:45 and sunset at 17:05 CET.

In Mareil-sur-Mauldre, the average sunshine duration in December is 4.2h.

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

The average daily maximum UV index in December is 2. A UV Index value 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
Mareil-sur-Mauldre, France

  • Average high temperature in December: 7.4°C

The warmest month (with the highest average high temperature) is August (24°C).
The month with the lowest average high temperature is January (6.3°C).

  • Average low temperature in December: 2.6°C

The month with the highest average low temperature is August (13.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).

Average pressure in December
Mareil-sur-Mauldre, France

  • Average pressure in December: 1018mbar

The month with the highest atmospheric pressure is September (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).

Average wind speed in December
Mareil-sur-Mauldre, France

  • Average wind speed in December: 16.2km/h

The windiest month (with the highest average wind speed) is February (16.5km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).

Average humidity in December
Mareil-sur-Mauldre, France

  • Average humidity in December: 87%

The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (72%).

Average rainfall in December
Mareil-sur-Mauldre, France

  • Average rainfall in December: 60mm

The wettest month (with the highest rainfall) is June (69mm).
The driest month (with the least rainfall) is September (24mm).

Average rainfall days in December
Mareil-sur-Mauldre, France

  • Average rainfall days in December: 16.9 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is September (12.8 days).

Average snowfall in December
Mareil-sur-Mauldre, France

  • Average snowfall in December: 21mm

The month with the highest snowfall is February (24mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Mareil-sur-Mauldre, France

  • Average snowfall days in December: 1.8 days

The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Mareil-sur-Mauldre, 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: 4h and 12min

The month with the most sunshine is June (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
Mareil-sur-Mauldre, France

  • Average sunshine days in December: 10.1 days

The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is June (8.2 days).

Average UV index in December
Mareil-sur-Mauldre, 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
Mareil-sur-Mauldre, France

  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 40).

Average visibility in December
Mareil-sur-Mauldre, 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).