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The weather in Brussels in December is very cold with temperatures between 3°C and 6°C, warm clothes are a must.
You can expect rain for roughly half of the month of December in Brussels. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
You can expect a few days of snow in Brussels during December. It’s important to get out your snow boots and warm mittens to stay warm while you explore Brussels.
Our weather forecast can give you a great sense of what weather to expect in Brussels in December 2024.
If you’re planning to visit Brussels in the near future, we highly recommend that you review the 14 day weather forecast for Brussels before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / 1° | 9 | 16 | 6 | 90 mm | Awful | Brussels in January |
| February | 7° / 2° | 8 | 15 | 6 | 72 mm | Awful | Brussels in February |
| March | 11° / 4° | 7 | 22 | 2 | 72 mm | Awful | Brussels in March |
| April | 15° / 6° | 4 | 25 | 1 | 53 mm | Good | Brussels in April |
| May | 18° / 9° | 6 | 25 | 0 | 87 mm | Good | Brussels in May |
| June | 21° / 12° | 6 | 24 | 0 | 99 mm | Good | Brussels in June |
| July | 23° / 14° | 6 | 25 | 0 | 95 mm | Perfect | Brussels in July |
| August | 23° / 15° | 5 | 26 | 0 | 99 mm | Perfect | Brussels in August |
| September | 20° / 12° | 4 | 26 | 0 | 60 mm | Good | Brussels in September |
| October | 15° / 9° | 5 | 26 | 0 | 71 mm | Good | Brussels in October |
| November | 10° / 5° | 7 | 21 | 1 | 84 mm | Bad | Brussels in November |
| December | 6° / 3° | 9 | 17 | 4 | 103 mm | Awful | Brussels in December |