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
December
Weather in December
Temperature
December ushers in a minute temperature change, with average high-temperatures reducing from November's cool 10.5°C (50.9°F) to a chilly 7.4°C (45.3°F). In Chatou, the nighttime temperature in December descends gently to an average of 3°C (37.4°F).Humidity
The months with the highest humidity in Chatou are January and December, with an average relative humidity of 86%.Rainfall
In Chatou, in December, it is raining for 12.5 days, with typically 31mm (1.22") of accumulated precipitation. Throughout the year, there are 147 rainfall days, and 321mm (12.64") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. The month with the most snowfall in Chatou is December, when snow falls for 1.9 days and typically aggregates up to 18mm (0.71") of snow.Daylight
December has the shortest days of the year in Chatou, with an average of 8h and 18min of daylight.On the first day of the month, sunrise is at 08:24 and sunset at 16:56. On the last day of December, in Chatou, sunrise is at 08:44 and sunset at 17:04 CET.
Sunshine
The average sunshine in December in Chatou is 4.2h.UV index
The months with the lowest UV index in Chatou, France, 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 average individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Experience reduced UV exposure by about half when donning a wide-brim hat. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Chatou?
What is the most humid month in Chatou?
What is the average humidity in December in Chatou?
How much does it rain in Chatou in December?
What is the snowiest month in Chatou?
How many days does it snow in December in Chatou?
What is the month with the shortest days in Chatou?
What is the average length of the day in December in Chatou?
When is the sunrise / sunset in December in Chatou?
How many hours of sunshine does Chatou have in December?
When is the lowest UV index in Chatou?
What is the UV index reading in December in Chatou?
Average temperature in December
Chatou, 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 (6.1°C).
- Average low temperature in December: 3°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in December
Chatou, France
- Average pressure in December: 1018.2mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in December
Chatou, France
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (10.2km/h).
Average humidity in December
Chatou, 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
Chatou, France
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is June (40mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in December
Chatou, France
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is September (9 days).
Average snowfall in December
Chatou, France
- Average snowfall in December: 18mm
The month with the highest snowfall is December (18mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Chatou, France
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is January (2.3 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
Chatou, 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
Chatou, France
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in December
Chatou, France
- Average UV index in December: 2
The months with the highest UV index are May, 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
Chatou, 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
Chatou, 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).
