Brussels weather in January
January in Brussels: cold, a little rain, with clean air — a fair time to visit.
#12 of 12 months in Brussels · #459 of 604 destinations to visit in January · comfort 52/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Brussels climate normals — January
| Daytime high | 7°C / 44°F | 🧥 cold |
|---|---|---|
| Nighttime low | 2°C / 36°F | |
| Feels like (high) | 3°C / 37°F | |
| Rainfall | 69 mm / 2.7 in | 🌦 some rain |
| Rainy days | 13 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | 3°C / 37°F | |
| Sunshine | 3.4 h/day | |
| Daylight | 8.5 h | |
| Wind | 22 km/h / 14 mph | |
| Snowfall | 5.3 cm / 2.1 in | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Brussels in January — FAQ
- Is January a good time to visit Brussels?
- January in Brussels: cold, a little rain, with clean air — a fair time to visit. It ranks #12 of 12 months for Brussels on SeasonMap's comfort score (52/100).
- What is the weather like in Brussels in January?
- In January, Brussels averages a daily high of 6.8°C and a low of 2.1°C, with about 68.6 mm of rain over roughly 12.8 rainy days.
- What is the air quality in Brussels in January?
- Brussels has a mean US Air Quality Index of about 34 in January.
- Does it snow in Brussels in January?
- Brussels sees roughly 5.3 cm of snowfall in January.