Transit Desk

Climate

Weather in Belgium in December

Weather in Belgium, December
In December, Belgium sees average highs of 7.6°C (46°F) and lows of 3.2°C (38°F), with around 69 mm of rain.

Belgium — December

Belgium December
Daytime high
7.6°C (46°F)
Overnight low
3.2°C (38°F)
Rainfall
69 mm
Best-time rank
Off-peak

How December compares

Belgium, December vs. the annual average (2025)
This month7.6°C (46°F) / 3.2°C (38°F) · 69 mm
Yearly average15.1°C (59°F) / 7.8°C (46°F) · 71 mm

December in Belgium runs 7.5°C (13.5°F) cooler than the yearly average, and is close to the yearly average rainfall. Pack winter clothing — it will be cold.

Common questions

What is the weather like in Belgium in December?

Average highs of 7.6°C (46°F) and lows of 3.2°C (38°F), with around 69 mm of rain.

Is December a good time to visit Belgium?

It is an off-peak month for comfort in Belgium; June, July, August tend to be more pleasant.

Updated climate normals, 2025