Brussels Weather in January
Brussels in January averages 7°C (45°F) during the day and 2°C (36°F) at night. This is part of the winter season, and quite a bit of rainfall is expected this month.
Rainfall in Brussels in January
Based on our climate data of the past 30 years, about 18 days of rain are anticipated, with 67 mm (2.6 in) on average. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Brussels in January
In January, Brussels gets low temperatures, with highs of 7°C (45°F). Nights cool to around 2°C (36°F). January is typically considered a winter month. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. With lows around 2°C (36°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. Typically, it's the chilliest month of the year, making it a great time for cozying up indoors. Do make sure you're prepared by packing the right winter outfits.
Sunshine in Brussels in January
The month is characterized by fewer sunny days, with roughly 54 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.
Wind Speed in Brussels in January
January sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Brussels. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Belgium, check out our Brussels's climate page.
Brussels Temperature in January
Min Temperature
2°C (36°F)
Max Temperature
7°C (45°F)
Chance of Rain
59%
Precipitation
67 mm (2.6 in)
Rainy days
18 days
Humidity
84%
Windspeed
4 m/s (8 knots)
Sunshine
54 hours
Percentage Sunshine
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Brussels typically stay consistent throughout January, with daily highs averaging around 7°C (45°F). Nights are cold, with lows around 1°C (34°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Brussels in January
Browse day-by-day weather records for Brussels spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Brussels historical weather extremes in January
Based on 49 years of weather observations in Brussels between 1976 and 2025, these are the recorded extremes.
- Brussels recorded its highest January temperature of 16°C (61°F) on January 1, 2023.
Best Places in Belgium in January
Find out more about the weather in Belgium and which places have the best travel conditions in this month. See all of Belgium in January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Brussels in January
We recommend to layer up for chilly conditions in Brussels in January. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Rain is likely on several days, so bring a good rain jacket. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Brussels in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Belgium, check out our Brussels's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Brussels climate overview or explore weather in Belgium.
