December weather forecastSijsele, Belgium
December
Weather in December
The first month of the winter, December, is still a chilly month in Sijsele, Belgium, with an average temperature ranging between max 7.7°C (45.9°F) and min 4.6°C (40.3°F).Temperature
The transition from November to December sees an average high-temperature of a frosty 7.7°C (45.9°F), indicating a minor variance from the prior month. In Sijsele, nights during December observe an average temperature decrease to an icy 4.6°C (40.3°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 85%.Rainfall
The wettest months in Sijsele are August and December, with an average 56mm (2.2") of rainfall.Snowfall
January through March, November and December are months with snowfall. In Sijsele, in December, during 2.2 snowfall days, 14mm (0.55") of snow is typically accumulated. In Sijsele, during the entire year, snow falls for 9.6 days and aggregates up to 66mm (2.6") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 0min of daylight.On the first day of December, sunrise is at 08:29 and sunset at 16:42. On the last day of the month, sunrise is at 08:50 and sunset at 16:49 CET.
Sunshine
With an average of 3.6h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Experience reduced UV exposure by about half when donning a wide-brim hat. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sijsele, Belgium
- Average high temperature in December: 7.7°C
The warmest month (with the highest average high temperature) is August (21.4°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in December: 4.6°C
The month with the highest average low temperature is August (15.1°C).
The coldest months (with the lowest average low temperature) are January and February (2.8°C).
Average pressure in December
Sijsele, Belgium
- Average pressure in December: 1015.5mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1011.7mbar).
Average wind speed in December
Sijsele, Belgium
- Average wind speed in December: 22.6km/h
The windiest month (with the highest average wind speed) is December (22.6km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in December
Sijsele, Belgium
- Average humidity in December: 85%
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are April, July and August (76%).
Average rainfall in December
Sijsele, Belgium
- Average rainfall in December: 56mm
The wettest months (with the highest rainfall) are August and December (56mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in December
Sijsele, Belgium
- Average rainfall days in December: 18.3 days
The month with the highest number of rainy days is November (18.6 days).
The month with the least rainy days is April (12.1 days).
Average snowfall in December
Sijsele, Belgium
- Average snowfall in December: 14mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Sijsele, Belgium
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Sijsele, Belgium
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 3h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in December
Sijsele, Belgium
- Average sunshine days in December: 7 days
The month with the most sunshine days is April (15.4 days).
The month with the least sunshine days is December (7 days).
Average UV index in December
Sijsele, 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
Sijsele, Belgium
- Average cloud cover in December: 62
The month with the most cloud cover is December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 38).
Average visibility in December
Sijsele, Belgium
- Average visibility in December: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, November and December (9km).
