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's onset introduces a mild reduction in the average high-temperature, from a cool 10.5°C (50.9°F) in November to a chilly 7.4°C (45.3°F). A modest nighttime temperature average of 3°C (37.4°F) characterizes December in Saint-Germain-en-Laye.Humidity
January and December, with an average relative humidity of 86%, are the most humid months.Rainfall
In Saint-Germain-en-Laye, in December, it is raining for 12.5 days, with typically 31mm (1.22") of accumulated precipitation. In Saint-Germain-en-Laye, during the entire year, the rain falls for 147 days and collects up to 321mm (12.64") of precipitation.Snowfall
Months with snowfall are January through March, November and December. The month with the most snowfall 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, with an average of 8h and 18min of daylight.On the first day of the month, sunrise is at 08:24 and sunset at 16:57. On the last day of December, sunrise is at 08:45 and sunset at 17:04 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. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. 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 is the average December temperature in Saint-Germain-en-Laye?
What is the most humid month in Saint-Germain-en-Laye?
What is the average humidity in December in Saint-Germain-en-Laye?
How many days does it rain in December in Saint-Germain-en-Laye?
When does it snow the most in Saint-Germain-en-Laye?
How much does it snow in Saint-Germain-en-Laye in December?
What is the month with the shortest days in Saint-Germain-en-Laye?
How many hours of daylight does Saint-Germain-en-Laye have in December?
When is the sunrise / sunset in December in Saint-Germain-en-Laye?
How many hours of sunshine does Saint-Germain-en-Laye have in December?
What are the months with the lowest UV index in Saint-Germain-en-Laye?
What is the UV index reading in December in Saint-Germain-en-Laye?
Average temperature in December
Saint-Germain-en-Laye, 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
Saint-Germain-en-Laye, 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
Saint-Germain-en-Laye, 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
Saint-Germain-en-Laye, 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
Saint-Germain-en-Laye, 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
Saint-Germain-en-Laye, 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
Saint-Germain-en-Laye, 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
Saint-Germain-en-Laye, 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
Saint-Germain-en-Laye, 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-Germain-en-Laye, 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
Saint-Germain-en-Laye, 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
Saint-Germain-en-Laye, 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-Germain-en-Laye, 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).
