Luxembourg weather in December
December in Luxembourg: cold, rainy, with clean air — one of the weakest months to visit.
#11 of 12 months in Luxembourg · #520 of 604 destinations to visit in December · comfort 46/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Luxembourg climate normals — December
| Daytime high | 5°C / 41°F | 🧥 cold |
|---|---|---|
| Nighttime low | 1°C / 35°F | |
| Feels like (high) | 2°C / 36°F | |
| Rainfall | 92 mm / 3.6 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 89% | 💦 very humid |
| Dew point | 2°C / 35°F | |
| Sunshine | 2.2 h/day | |
| Daylight | 8.2 h | |
| Wind | 19 km/h / 12 mph | |
| Snowfall | 6.6 cm / 2.6 in | |
| Air quality (US AQI) | 30 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Luxembourg in December — FAQ
- Is December a good time to visit Luxembourg?
- December in Luxembourg: cold, rainy, with clean air — one of the weakest months to visit. It ranks #11 of 12 months for Luxembourg on SeasonMap's comfort score (46/100).
- What is the weather like in Luxembourg in December?
- In December, Luxembourg averages a daily high of 5.2°C and a low of 1.4°C, with about 91.5 mm of rain over roughly 17 rainy days.
- What is the air quality in Luxembourg in December?
- Luxembourg has a mean US Air Quality Index of about 30 in December.
- Does it snow in Luxembourg in December?
- Luxembourg sees roughly 6.6 cm of snowfall in December.