December weather forecastGarnich, Luxembourg

December

Weather in December

December rings in the winter season with the coldest temperatures of the year, between 0.2°C (32.4°F) and 4.4°C (39.9°F). As a characteristic month of intense winter, it sees a considerable increase in snowfall, amounting to 80mm (3.15"). The festive season is complemented by an ethereal white blanket that covers the city. Despite the freezing temperatures, the city navigates through these chilly days under the festive spirit. Night falls early, reducing the average sunshine duration to 3 hours, curtailing most outdoor activities.

Temperature

The average high-temperature slightly decreases in December, shifting from a chilly 7.5°C (45.5°F) in November to a cold 4.4°C (39.9°F). Nights in December exhibit a minor reduction to an average low temperature of 0.2°C (32.4°F).

Humidity

December is the most humid month, with an average relative humidity of 92%.

Rainfall

The month with the most rainfall is December, when the rain falls for 14.6 days and typically aggregates up to 73mm (2.87") of precipitation.

Snowfall

Months with snowfall in Garnich are January through May, October through December. The months with the most snowfall in Garnich are January and December, with an average 80mm (3.15") of accumulated snow.

Daylight

December has the shortest days of the year in Garnich, with an average of 8h and 12min of daylight.
On the first day of December, sunrise is at 08:11 and sunset at 16:38. On the last day of the month, sunrise is at 08:32 and sunset at 16:45 CET.

Sunshine

The month with the least sunshine is December, with an average of 3h of sunshine.

UV index

The months with the lowest UV index in Garnich are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.

Updated: Feb 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, the average high-temperature and low-temperature are 4.4°C (39.9°F) and 0.2°C (32.4°F) respectively.

With an average relative humidity of 92%, December is the most humid month in Garnich, Luxembourg.

In Garnich, Luxembourg, the average relative humidity in December is 92%.

The month with the most rainfall in Garnich, Luxembourg, is December, when the rain falls for 14.6 days and typically aggregates up to 73mm (2.87") of precipitation.

In Garnich, in December, during 14.6 rainfall days, 73mm (2.87") of precipitation is typically accumulated.

The months with the most snowfall are January and December, with an average 80mm (3.15") of accumulated snow.

In December, in Garnich, it is snowing for 8.2 days. Throughout December, 80mm (3.15") of snow is accumulated.

The month with the shortest days in Garnich, Luxembourg, is December, with an average of 8h and 12min of daylight.

In Garnich, Luxembourg, the average day length in December is 8h and 13min.

On the first day of December in Garnich, sunrise is at 08:11 and sunset at 16:38. On the last day of the month, sunrise is at 08:32 and sunset at 16:45 CET.

December has the least sunshine of the year, with an average of 3h of sunshine.

In December, the average sunshine duration is 3h.

The months with the lowest UV index in Garnich, Luxembourg, are January through March, November and December, with an average maximum UV index of 2.

In December, the average daily maximum UV index in Garnich is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

7.5°C

4.4°C

3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

14.7km/h

16.7km/h

16.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

10.4

11.2

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Garnich, 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
Garnich, 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
Garnich, 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
Garnich, 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
Garnich, 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
Garnich, 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
Garnich, 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
Garnich, 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
Garnich, 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
Garnich, 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
Garnich, 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).