Lille weather in December
December in Lille: cold, rainy, with clean air — a fair time to visit.
#11 of 12 months in Lille · #689 of 897 destinations to visit in December · comfort 56/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Lille in December
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Lille climate normals — December
| Daytime high | 8°C / 47°F | 🧥 cold |
|---|---|---|
| Nighttime low | 4°C / 39°F | |
| Rainfall | 88 mm / 3.5 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 4°C / 38°F | |
| Sunshine | 3 h/day | |
| Daylight | 8.1 h | |
| Wind | 22 km/h / 14 mph | |
| Snowfall | 1 cm / 0.4 in | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Lille in December — FAQ
- Is December a good time to visit Lille?
- December in Lille: cold, rainy, with clean air — a fair time to visit. It ranks #11 of 12 months for Lille on SeasonMap's comfort score (56/100).
- What is the weather like in Lille in December?
- In December, Lille averages a daily high of 8.1°C and a low of 3.7°C, with about 88.1 mm of rain over roughly 16.4 rainy days.
- What is the air quality in Lille in December?
- Lille has a mean US Air Quality Index of about 39 in December.
- Does it snow in Lille in December?
- Lille sees roughly 1 cm of snowfall in December.