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Mondorf-les-Bains Weather in December
December in Mondorf-les-Bains typically sees daytime highs of 6°C (43°F) and nighttime lows of 1°C (34°F). As the wettest month of the year, expect more rainfall than other months. It falls within the winter season.
Rainfall in Mondorf-les-Bains in December
As the rainiest month, carrying an umbrella is advisable to manage the frequent rain. Rain is expected on roughly 16 days, totalling around 94 mm (3.7 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Mondorf-les-Bains in December
Temperatures in Mondorf-les-Bains in December top out at 6°C (43°F) and drop to 1°C (34°F) overnight. December marks the winter season. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With lows around 1°C (34°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Mondorf-les-Bains 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.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Mondorf-les-Bains.
Mondorf-les-Bains Temperature in December
Min Temperature
1°C (34°F)
Max Temperature
6°C (43°F)
Chance of Rain
55%
Precipitation
94 mm (3.7 in)
Rainy days
16 days
Humidity
90% *
Sunshine
40 hours *
Percentage Sunshine
16% *
* Data from: Luxembourg, Luxembourg (12 KM, 8 Miles).
Mondorf-les-Bains Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mondorf-les-Bains - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Mondorf-les-Bains 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 records for Mondorf-les-Bains in December
Browse day-by-day weather records for Mondorf-les-Bains spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mondorf-les-Bains historical weather extremes in December
According to our 49 years of weather records for Mondorf-les-Bains, the following extremes were recorded between 1976 and 2025.
- On December 31, 2022, temperatures climbed to 17°C (63°F), marking the warmest December day on record.
- The lowest daytime temperature in December was -9°C (16°F), recorded on December 29, 1976.
- The coldest night in December in Mondorf-les-Bains was on December 20, 2009, with a minimum of -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 →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Mondorf-les-Bains 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. With limited sunshine expected, sunglasses aren't a priority for packing.
What To Do in Mondorf-les-Bains in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling4/10 -
Walking4/10 -
Camping4/10 -
Outdoor sports4/10
Mondorf-les-Bains 3-Day Forecast
More climate data for Mondorf-les-Bains
Temperature Rainfall Sunshine Humidity
See the full Mondorf-les-Bains climate overview or explore weather in Luxembourg.
Popular in December
Where to go in December - average daytime high across popular destinations.
Luxembourg
6°C (43°F) Remich6°C (43°F) Mondorf-les-Bains6°C (43°F) Enscherange5°C (41°F) Berdorf6°C (43°F) Vianden6°C (43°F) Echternach6°C (43°F) Clervaux5°C (41°F) Bucket list
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