December weather forecastMarcoussis, France
December
Weather in December
December, the first month of the winter in Marcoussis, is also a frosty month, with an average temperature ranging between min 2.9°C (37.2°F) and max 7.5°C (45.5°F).Temperature
A moderate decline in average high-temperatures is noted in December, moving from a fresh 10.6°C (51.1°F) in November to a frosty 7.5°C (45.5°F). In Marcoussis, December nights maintain a consistent temperature, with an average low of 2.9°C (37.2°F).Humidity
January and December, with an average relative humidity of 86%, are the most humid months in Marcoussis.Rainfall
In Marcoussis, during December, the rain falls for 13 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, there are 153.5 rainfall days, and 330mm (12.99") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. The months with the most snowfall in Marcoussis are February and December, with an average 15mm (0.59") of accumulated snow.Daylight
With an average of 8h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:22 and sunset at 16:57. On the last day of December, in Marcoussis, sunrise is at 08:43 and sunset at 17:05 CET.
Sunshine
In Marcoussis, 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 Marcoussis. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Marcoussis, France
- Average high temperature in December: 7.5°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in December: 2.9°C
The month with the highest average low temperature is August (15°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in December
Marcoussis, France
- Average pressure in December: 1018.5mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is November (1013.6mbar).
Average wind speed in December
Marcoussis, France
- Average wind speed in December: 15km/h
The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in December
Marcoussis, France
- Average humidity in December: 86%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in December
Marcoussis, France
- Average rainfall in December: 32mm
The wettest month (with the highest rainfall) is June (40mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in December
Marcoussis, France
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is September (9.1 days).
Average snowfall in December
Marcoussis, France
- Average snowfall in December: 15mm
The months with the highest snowfall are February and December (15mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Marcoussis, France
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is February (2.7 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
Marcoussis, France
- Average daylight in December: 8h and 24min
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 24min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Marcoussis, France
- Average sunshine days in December: 13 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is June (11 days).
Average UV index in December
Marcoussis, 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
Marcoussis, France
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in December
Marcoussis, France
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
