Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The arrival of December corresponds with a light shift in temperature, down from a fresh 10.5°C (50.9°F) in November to a chilly 7.4°C (45.3°F). Saint-Leu-la-Forêt, during December nights, records a temperature marginally cooler than the daytime average, at an icy 3.1°C (37.6°F).Humidity
January and December, with an average relative humidity of 86%, are the most humid months in Saint-Leu-la-Forêt.Rainfall
The month with the most rainfall in Saint-Leu-la-Forêt is December, when the rain falls for 11.6 days and typically aggregates up to 18mm (0.71") of precipitation.Snowfall
January through March, November and December are months with snowfall. In Saint-Leu-la-Forêt, during December, snow falls for 1.1 days and regularly aggregates up to 2mm (0.08") of snow. In Saint-Leu-la-Forêt, France, during the entire year, snow falls for 5.6 days and aggregates up to 17mm (0.67") of snow.Daylight
With an average of 8h and 18min of daylight, December has the shortest days of the year in Saint-Leu-la-Forêt.On the first day of the month, sunrise is at 08:24 and sunset at 16:56. On the last day of December, in Saint-Leu-la-Forêt, France, sunrise is at 08:45 and sunset at 17:03 CET.
Sunshine
In December, the average sunshine is 4.2h.UV index
The months with the lowest UV index in Saint-Leu-la-Forêt 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 vulnerability from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Saint-Leu-la-Forêt?
What is the most humid month in Saint-Leu-la-Forêt?
What is the average humidity in December in Saint-Leu-la-Forêt?
What is the wettest month in Saint-Leu-la-Forêt?
How much does it rain in Saint-Leu-la-Forêt in December?
How many days does it snow in December in Saint-Leu-la-Forêt?
What is the month with the shortest days in Saint-Leu-la-Forêt?
How many hours of daylight does Saint-Leu-la-Forêt have in December?
When are sunrise and sunset in December in Saint-Leu-la-Forêt?
How long on average sun shines in December in Saint-Leu-la-Forêt?
What are the months with the lowest UV index in Saint-Leu-la-Forêt?
What is the UV index reading in December in Saint-Leu-la-Forêt?
Average temperature in December
Saint-Leu-la-Forêt, France
- Average high temperature in December: 7.4°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in December: 3.1°C
The month with the highest average low temperature is August (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in December
Saint-Leu-la-Forêt, France
- Average pressure in December: 1018.1mbar
The months with the highest atmospheric pressure are September and December (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in December
Saint-Leu-la-Forêt, France
- Average wind speed in December: 15.1km/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 (10.1km/h).
Average humidity in December
Saint-Leu-la-Forêt, 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 (68%).
Average rainfall in December
Saint-Leu-la-Forêt, France
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is December (18mm).
The driest month (with the least rainfall) is September (6mm).
Average rainfall days in December
Saint-Leu-la-Forêt, France
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is July (12.5 days).
The month with the least rainy days is September (7.6 days).
Average snowfall in December
Saint-Leu-la-Forêt, France
- Average snowfall in December: 2mm
The month with the highest snowfall is January (7mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Saint-Leu-la-Forêt, France
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.1 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
Saint-Leu-la-Forêt, France
- Average daylight in December: 8h and 2min
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 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Saint-Leu-la-Forêt, France
- Average sunshine days in December: 14.7 days
The month with the most sunshine days is September (19.6 days).
The months with the least sunshine days are February and July (14.3 days).
Average UV index in December
Saint-Leu-la-Forêt, France
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Saint-Leu-la-Forêt, 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 38).
Average visibility in December
Saint-Leu-la-Forêt, 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).
Saint-Leu-la-Forêt, France
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