December weather forecastCasteil, France
December
Weather in December
The first month of the winter, December, is also an icy month in Casteil, France, with temperature in the range of an average high of 4°C (39.2°F) and an average low of -3.6°C (25.5°F).Temperature
The advent of December presents an average high-temperature of a cold 4°C (39.2°F), maintaining a close correlation with the preceding month. Casteil cools down to an average low-temperature of -3.6°C (25.5°F) throughout the month of December.Humidity
In December, the average relative humidity is 78%.Rainfall
In Casteil, during December, the rain falls for 7.6 days and regularly aggregates up to 38mm (1.5") of precipitation. In Casteil, during the entire year, the rain falls for 160.5 days and collects up to 840mm (33.07") of precipitation.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 6.8 days. Throughout December, 123mm (4.84") of snow is accumulated. Throughout the year, there are 54 snowfall days, and 1387mm (54.61") of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:00 and sunset at 17:18. On the last day of December, in Casteil, sunrise is at 08:20 and sunset at 17:27 CET.
Sunshine
In December, the average sunshine is 6h.UV index
In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 2 in December translates into this advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Casteil, France
- Average high temperature in December: 4°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in December: -3.6°C
The month with the highest average low temperature is August (9.4°C).
The coldest month (with the lowest average low temperature) is February (-6°C).
Average pressure in December
Casteil, France
- Average pressure in December: 1021.1mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in December
Casteil, France
- Average wind speed in December: 9.8km/h
The windiest month (with the highest average wind speed) is February (10.5km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity in December
Casteil, France
- Average humidity in December: 78%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Casteil, France
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is April (96mm).
The driest month (with the least rainfall) is February (35mm).
Average rainfall days in December
Casteil, France
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is April (19.5 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in December
Casteil, France
- Average snowfall in December: 123mm
The month with the highest snowfall is January (482mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Casteil, France
- Average snowfall days in December: 6.8 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Casteil, France
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and November (Average sunshine: 5h and 42min).
Average sunshine days in December
Casteil, France
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is April (7.2 days).
Average UV index in December
Casteil, France
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Casteil, France
- Average cloud cover in December: 39
The month with the most cloud cover is April (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Casteil, France
- Average visibility in December: 9km
The month with the highest visibility is December (9km).
The month with the lowest visibility is April (7km).





