Brussels weather

Our guide to the weather in Brussels during December

6

Average high

2

UV Index

97mm

Monthly rainfall

87%

Humidity

Brussels is a vibrant city with plenty of cultural attractions to explore, though it can be chilly in December so make sure to pack warm layers. We've looked at the most up-to-date weather data for Brussels, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Brussels weather in December.

What's the temperature like in Brussels during December?

The temperature reaches around 6℃ during the daytime in December, falling away to 3℃ at night. The UV index will be low at this time of year, so not something to worry about. However, if you're going to be outside for long periods it's always a good idea to apply a small amount of sunscreen to exposed skin.

Does it snow in Brussels during December?

Possibly. There's a chance of snow during December but not as much as you might think. Check the local forecast before you leave home so that you can pack appropriate footwear and clothing.

Does it rain in Brussels during December?

December is typically the wettest month in Brussels. On average, there will be 9 rainy days during the month, amounting to 97.1mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Brussels during December?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during December. With cool air temperatures, any breeze will feel cold.

Join the club...

Be the first to hear about discounted holidays, flash sales and amazing travel competitions to Brussels!

Weather in Brussels

Our month-by-month guide to the weather and climate in Brussels

5.2

Brussels weather in

January
6.7

Brussels weather in

February
10.7

Brussels weather in

March
14.8

Brussels weather in

April
17.5

Brussels weather in

May
21.2

Brussels weather in

June
23.2

Brussels weather in

July
23.4

Brussels weather in

August
20.0

Brussels weather in

September
15.2

Brussels weather in

October
10.1

Brussels weather in

November
6.4

Brussels weather in

December