Wiltz Weather in December
December in Wiltz brings low temperatures, with daytime highs of 5°C (41°F) and nights around 0°C (32°F). It's also the wettest month of the year, so an umbrella is a must.
Rainfall in Wiltz in December
The month brings the most rain, so be prepared with an umbrella for the occasional shower. Based on our climate data of the past 30 years, about 18 days of rain are anticipated, with 101 mm (4 in) on average. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Wiltz in December
If you're visiting Wiltz in December, expect highs of 5°C (41°F) and overnight lows around 0°C (32°F). December is in the winter season. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. Nights drop to 0°C (32°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Wiltz in December
This month is characterized by fewer sunny days, with about 40 hours of sunshine. It's great for those who appreciate cooler, less sunny days.December in Wiltz has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations 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 Wiltz's climate page.
Wiltz Temperature in December
Min Temperature
0°C (32°F)
Max Temperature
5°C (41°F)
Chance of Rain
61%
Precipitation
101 mm (4 in)
Rainy days
18 days
Humidity
90% *
Sunshine
40 hours *
Percentage Sunshine
16% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Wiltz typically stay consistent throughout December, with daily highs averaging around 5°C (41°F). Nights are cold, with lows around 0°C (32°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 Wiltz in December
Browse day-by-day weather records for Wiltz spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Wiltz historical weather extremes in December
Based on 49 years of weather observations in Wiltz between 1976 and 2025, these are the recorded extremes.
- The hottest December day on record in Wiltz reached 15°C (59°F) (December 31, 2022).
- Wiltz experienced its chilliest December day on December 31, 1996, reaching only -9°C (16°F).
- The lowest overnight temperature recorded in December was -16°C (3°F) (December 19, 2009).
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Wiltz in December
We recommend to layer up for chilly conditions in Wiltz in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. With limited sunshine expected, sunglasses aren't a priority for packing.What To Do in Wiltz 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 Wiltz's climate page.
Temperature Rainfall Sunshine Humidity
See the full Wiltz climate overview or explore weather in Luxembourg.
