December weather forecastSchouweiler, Luxembourg
December
Weather in December
December marks the onset of the harsh Luxemburgish winter, with Schouweiler experiencing its coldest temperatures and highest rainfall levels. Rainfall sees a notable peak at 73mm (2.87"), revealing a wet and cold December. Snowflakes start dusting the city, transforming it into a winter wonderland. Despite the biting cold and short sunlight hours, Christmas festivities bring extensive joy to the city, ending the yearly weather cycle on a high note.Temperature
In Schouweiler, entering December brings a subtle temperature decrement, reducing from November's frosty 7.5°C (45.5°F) to an icy 4.4°C (39.9°F). In December, Schouweiler experiences a marginal drop in temperature, with averages of 0.2°C (32.4°F) at night.Humidity
December is the most humid month in Schouweiler, with an average relative humidity of 92%.Rainfall
December is the month with the most rainfall. Rain falls for 14.6 days and accumulates 73mm (2.87") of precipitation.Snowfall
January through May, October through December are months with snowfall in Schouweiler. The months with the most snowfall are January and December, with an average 80mm (3.15") of accumulated snow.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year.On the first day of December in Schouweiler, Luxembourg, sunrise is at 08:11 and sunset at 16:39. On the last day of the month, sunrise is at 08:32 and sunset at 16:46 CET.
Sunshine
With an average of 3h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January through March, 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 unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Schouweiler, Luxembourg
- Average high temperature in December: 4.4°C
The warmest months (with the highest average high temperature) are July and August (21.8°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in December: 0.2°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-1.1°C).
Average pressure in December
Schouweiler, Luxembourg
- Average pressure in December: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).
Average wind speed in December
Schouweiler, Luxembourg
- Average wind speed in December: 15.6km/h
The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity in December
Schouweiler, Luxembourg
- Average humidity in December: 92%
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and August (78%).
Average rainfall in December
Schouweiler, Luxembourg
- Average rainfall in December: 73mm
The wettest month (with the highest rainfall) is December (73mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in December
Schouweiler, Luxembourg
- Average rainfall days in December: 14.6 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (11.6 days).
Average snowfall in December
Schouweiler, Luxembourg
- Average snowfall in December: 80mm
The months with the highest snowfall are January and December (80mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Schouweiler, Luxembourg
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Schouweiler, Luxembourg
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in December
Schouweiler, Luxembourg
- Average sunshine days in December: 9 days
The months with the most sunshine days are April and September (14.7 days).
The month with the least sunshine days is December (9 days).
Average UV index in December
Schouweiler, Luxembourg
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Schouweiler, Luxembourg
- Average cloud cover in December: 71
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Schouweiler, Luxembourg
- Average visibility in December: 8km
The months with the highest visibility are March, April and August (9km).
The month with the lowest visibility is November (7km).





