Brussels weather in December
“Cool and moody. Best paired with warm rooms and long lunches.”
Roughly 13 rainy days across the month, on average.
In december, Brussels settles into its cold, contemplative stillness. The city keeps a different pulse than in summer or midwinter, and travellers who arrive with the right expectations are rewarded.
Days average around 8°C (46°F), cooling to 3°C after sunset. Rainfall is moderate — around 13 rainy days spread through the month. Daylight is short — the mornings arrive slowly and the evenings settle in early.
These figures are climatological averages, drawn from a decade of daily records via the Open-Meteo Archive — not a forecast. But they are honest, and they are the sort of thing a good travel guide ought to tell you before you book the flight.
What to pack for Brussels in December
- •A properly warm coat — not a fashion piece
- •A compact travel umbrella — one you'll actually carry
- •A merino base layer for the cold evenings
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Brussels in December
- →Lightweight fleeceAmazon · shop this
- →Merino travel socksAmazon · shop this
- →Compact travel umbrellaAmazon · shop this
- →Universal travel adapterAmazon · shop this
- →Compression packing cubesAmazon · shop this
- →Anti-theft crossbody bagAmazon · shop this
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Brussels in December — FAQ
Q01Is December a good time to visit Brussels?
Is December a good time to visit Brussels?
It is a fair time to visit — expect variable conditions and plan flexibility. In December, Brussels averages a high of 8°C (46°F) and a low of 3°C (38°F), with 71mm of rainfall across roughly 13 rainy days.
Q02What is the average temperature in Brussels in December?
What is the average temperature in Brussels in December?
The average high temperature in Brussels during December is 8°C (46°F), with an average low of 3°C (38°F). These figures are averaged from 11 complete years of daily records (2015–2025, Open-Meteo Archive).
Q03How many rainy days does Brussels have in December?
How many rainy days does Brussels have in December?
Brussels averages approximately 13 rainy days in December, with a total monthly rainfall of about 71mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Brussels in December?
What should I pack for Brussels in December?
For Brussels in December, pack a warm winter coat, a merino base layer for evenings, a compact umbrella or waterproof jacket, comfortable walking shoes. These recommendations are based on 11 complete years of weather averages for this specific month.
Q05How crowded is Brussels in December?
How crowded is Brussels in December?
Tourist crowds in Brussels during December are typically low — winter is off-season, meaning quiet streets and better hotel deals. Consider this when planning accommodation — prices track crowd levels closely.