Luxembourg Weather in December
With daytime temperatures of 6°C (43°F) and nighttime lows of 1°C (34°F), December in Luxembourg brings low temperatures during the day. It is also the wettest month of the year, so pack an umbrella.
Rainfall in Luxembourg in December
It's the month with the heaviest rainfall, so an umbrella is a must to navigate the wet weather. Historically, approximately 17 days this month are expected to have rain, averaging 90 mm (3.5 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Luxembourg in December
December in Luxembourg brings low temperatures, with highs of 6°C (43°F) and nights around 1°C (34°F). December is a notable month of the winter season. It stays cool throughout the day, so warm layers are a good idea from morning to evening. Nights fall to 1°C (34°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Luxembourg in December
This month sees fewer sunny days, with about 40 hours of sunshine, perfect for those who enjoy cooler temperatures.December in Luxembourg can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Luxembourg, check out our Luxembourg's climate page.
Luxembourg Temperature in December
Min Temperature
1°C (34°F)
Max Temperature
6°C (43°F)
Chance of Rain
56%
Precipitation
90 mm (3.5 in)
Rainy days
17 days
Humidity
90%
Sunshine
40 hours
Percentage Sunshine
16%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Luxembourg typically stay consistent throughout December, with daily highs averaging around 6°C (43°F). Nights are cold, with lows typically ranging from -1°C (30°F) to 1°C (34°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Luxembourg in December
Browse day-by-day weather records for Luxembourg spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Luxembourg historical weather extremes in December
According to our 49 years of weather records for Luxembourg, the following extremes were recorded between 1976 and 2025.
- The hottest December day on record in Luxembourg reached 15°C (59°F) (December 31, 2022).
- The coldest December day was on December 29, 1976, with a maximum of -9°C (16°F).
- Luxembourg registered its coldest December night on December 19, 2009, with temperatures dropping to -14°C (7°F).
Best Places in Luxembourg in December
Find out more about the weather in Luxembourg and which places have the best travel conditions in this month. See all of Luxembourg in December →
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What to Wear in Luxembourg in December
Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Luxembourg in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Luxembourg, check out our Luxembourg's climate page.
Temperature Rainfall Sunshine Humidity
See the full Luxembourg climate overview or explore weather in Luxembourg.
