December weather forecastCastéron, France
December
Weather in December
The first month of the winter, December, is still a cool month in Castéron, France, with an average temperature ranging between min 4.4°C (39.9°F) and max 10.2°C (50.4°F).Temperature
Castéron experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a refreshing 13.3°C (55.9°F) in November to a cool 10.2°C (50.4°F). Castéron experiences a mean low-temperature of 4.4°C (39.9°F) during December.Humidity
The average relative humidity in December in Castéron is 82%.Rainfall
In Castéron, during December, the rain falls for 11 days and regularly aggregates up to 31mm (1.22") of precipitation. Throughout the year, in Castéron, there are 155.2 rainfall days, and 440mm (17.32") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Castéron, in December, during 0.8 snowfall days, 3mm (0.12") of snow is typically accumulated. Throughout the year, there are 4.7 snowfall days, and 39mm (1.54") of snow is accumulated.Daylight
December has the shortest days of the year in Castéron, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 08:11 and sunset at 17:20. On the last day of December, in Castéron, sunrise is at 08:30 and sunset at 17:28 CET.
Sunshine
The average sunshine in December is 5.4h.UV index
In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: During December, 3 as the daily maximum UV index converts into the following advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Castéron, France
- Average high temperature in December: 10.2°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (9°C).
- Average low temperature in December: 4.4°C
The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (2.8°C).
Average pressure in December
Castéron, France
- Average pressure in December: 1021.7mbar
The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in December
Castéron, France
- Average wind speed in December: 11.2km/h
The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is September (8.7km/h).
Average humidity in December
Castéron, France
- Average humidity in December: 82%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (67%).
Average rainfall in December
Castéron, France
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is May (52mm).
The driest month (with the least rainfall) is September (22mm).
Average rainfall days in December
Castéron, France
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is September (9.9 days).
Average snowfall in December
Castéron, France
- Average snowfall in December: 3mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Castéron, France
- Average snowfall days in December: 0.8 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
Castéron, France
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Castéron, France
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is April (12.7 days).
Average UV index in December
Castéron, France
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and November (UV index 2).
Average cloud cover in December
Castéron, France
- Average cloud cover in December: 43
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in December
Castéron, 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).





