December weather forecastChastre, Belgium
December
Weather in December
The first month of the winter, December, is also a frosty month in Chastre, Belgium, with temperature in the range of an average low of 2.2°C (36°F) and an average high of 6.1°C (43°F).Temperature
With December's onset, the weather reveals a slight temperature decrease, transitioning from 9.5°C (49.1°F) in November to a still chilly 6.1°C (43°F). Throughout December, Chastre observes a steady low-temperature average of 2.2°C (36°F), reflecting a minor dip from daytime highs.Humidity
The most humid month is December, with an average relative humidity of 88%.Rainfall
In Chastre, in December, during 16 rainfall days, 52mm (2.05") of precipitation is typically accumulated. Throughout the year, there are 187 rainfall days, and 488mm (19.21") of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 3 days. Throughout December, 23mm (0.91") of snow is accumulated. In Chastre, during the entire year, snow falls for 14.5 days and aggregates up to 114mm (4.49") of snow.Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:21 and sunset at 16:39. On the last day of December, sunrise is at 08:42 and sunset at 16:46 CET.
Sunshine
With an average of 3.6h 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 reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take to heart! Snow reflection can almost 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
Chastre, Belgium
- Average high temperature in December: 6.1°C
The warmest month (with the highest average high temperature) is July (22.9°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in December: 2.2°C
The month with the highest average low temperature is August (13.7°C).
The coldest months (with the lowest average low temperature) are January and February (0.8°C).
Average pressure in December
Chastre, Belgium
- Average pressure in December: 1016.5mbar
The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1012.7mbar).
Average wind speed in December
Chastre, Belgium
- Average wind speed in December: 18.3km/h
The windiest month (with the highest average wind speed) is December (18.3km/h).
The calmest month (with the lowest average wind speed) is August (11.6km/h).
Average humidity in December
Chastre, Belgium
- Average humidity in December: 88%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Chastre, Belgium
- Average rainfall in December: 52mm
The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in December
Chastre, Belgium
- Average rainfall days in December: 16 days
The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is February (12.8 days).
Average snowfall in December
Chastre, Belgium
- Average snowfall in December: 23mm
The month with the highest snowfall is February (42mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Chastre, Belgium
- Average snowfall days in December: 3 days
The month with the highest number of snowfall days is February (4.5 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
Chastre, 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 36min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in December
Chastre, Belgium
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is October (13.5 days).
The month with the least sunshine days is August (9.8 days).
Average UV index in December
Chastre, 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
Chastre, Belgium
- Average cloud cover in December: 62
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in December
Chastre, 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).





