December weather forecastCasteau, Belgium
December
Weather in December
The first month of the winter, December, is also a frosty month in Casteau, Belgium, with an average temperature varying between 2.2°C (36°F) and 6.2°C (43.2°F).Temperature
In Casteau, the beginning of December is marked by a marginally lowered average high-temperature, shifting from November's chilly 9.5°C (49.1°F) to a still frosty 6.2°C (43.2°F). Casteau's nighttime average temperature in December drops marginally from the daytime highs, settling at a cold 2.2°C (36°F).Humidity
December is the most humid month in Casteau, with an average relative humidity of 89%.Rainfall
December is the month with the most rainfall. Rain falls for 15.4 days and accumulates 60mm (2.36") of precipitation.Snowfall
January through March, October through December are months with snowfall. In Casteau, in December, during 2.5 snowfall days, 20mm (0.79") of snow is typically accumulated. In Casteau, during the entire year, snow falls for 10.3 days and aggregates up to 87mm (3.43") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 6min of daylight.On the first day of the month, sunrise is at 08:23 and sunset at 16:42. On the last day of December, sunrise is at 08:44 and sunset at 16:49 CET.
Sunshine
With an average of 3.5h of sunshine, December has the least sunshine of the year.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 estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Casteau, Belgium
- Average high temperature in December: 6.2°C
The warmest months (with the highest average high temperature) are July and August (22.7°C).
The month with the lowest average high temperature is January (5°C).
- Average low temperature in December: 2.2°C
The months with the highest average low temperature are July and August (12.9°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in December
Casteau, Belgium
- Average pressure in December: 1016.7mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1012.6mbar).
Average wind speed in December
Casteau, Belgium
- Average wind speed in December: 18.8km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).
Average humidity in December
Casteau, Belgium
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
Casteau, Belgium
- Average rainfall in December: 60mm
The wettest month (with the highest rainfall) is December (60mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in December
Casteau, Belgium
- Average rainfall days in December: 15.4 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is March (12.8 days).
Average snowfall in December
Casteau, Belgium
- Average snowfall in December: 20mm
The month with the highest snowfall is January (31mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Casteau, Belgium
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Casteau, Belgium
- Average daylight in December: 8h and 6min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 3h and 30min
The months with the most sunshine are July and August (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in December
Casteau, Belgium
- Average sunshine days in December: 12 days
The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Casteau, Belgium
- Average UV index in December: 2
The months with the highest UV index are 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
Casteau, Belgium
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are April and August (Cloud cover 43).
Average visibility in December
Casteau, Belgium
- 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).
