Climate averages 1991–2020
Luxembourg weather
in December.
A cold, moderately wet month: the 11th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Luxembourg: daytime highs average 5.1°C and nights cool to about 0.6°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 84 mm of rain on roughly 14 days, which makes December a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 8 h 14 min on an average December day.
The nearest other city in this atlas is Trier (40 km away). In December its highs average 5.4°C, about as warm as Luxembourg, with 99 mm of rain.
From December to January, average highs fall by 0.6°C to 4.5°C, and monthly rainfall falls from 84 mm to 68 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Luxembourg climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.5°C-0.4°C | -0.4°C | 68 | 12.0 | 8.79 h |
| February | 5.8°C-0.5°C | -0.5°C | 58 | 10.6 | 10.110 h |
| March | 9.7°C1.6°C | 1.6°C | 60 | 11.5 | 11.912 h |
| April | 13.7°C4.4°C | 4.4°C | 52 | 10.6 | 13.714 h |
| May | 17.4°C8.5°C | 8.5°C | 66 | 12.4 | 15.315 h |
| June | 20.6°C11.6°C | 11.6°C | 62 | 10.5 | 16.216 h |
| July | 22.7°C13.8°C | 13.8°C | 58 | 10.8 | 15.816 h |
| August | 22.7°C13.7°C | 13.7°C | 62 | 10.3 | 14.414 h |
| September | 18.6°C10.5°C | 10.5°C | 60 | 9.4 | 12.713 h |
| October | 13.9°C7.3°C | 7.3°C | 67 | 11.3 | 10.811 h |
| November | 8.4°C3.4°C | 3.4°C | 68 | 12.7 | 9.19 h |
| December, selected | 5.1°C0.6°C | 0.6°C | 84 | 13.8 | 8.28 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Trier in DecemberGermany · 40 kmHigh 5.4°C · Low 1.0°C · 99 mm rain
- Metz in DecemberFrance · 55 kmHigh 5.7°C · Low 1.2°C · 84 mm rain
- Saarbrücken in DecemberGermany · 76 kmHigh 5.5°C · Low 1.1°C · 99 mm rain
- Nancy in DecemberFrance · 103 kmHigh 5.9°C · Low 1.3°C · 87 mm rain
- Kaiserslautern in DecemberGermany · 120 kmHigh 5.2°C · Low 0.9°C · 72 mm rain
- Liège in DecemberBelgium · 121 kmHigh 6.3°C · Low 2.1°C · 82 mm rain
- Aachen in DecemberGermany · 130 kmHigh 5.6°C · Low 1.5°C · 85 mm rain
- Namur in DecemberBelgium · 131 kmHigh 6.4°C · Low 2.0°C · 80 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Luxembourg) is explained once on the Luxembourg year overview and on the Sources, method and limits page.