The weather in Lummen in December is very cold with temperatures between 2°C and 6°C, warm clothes are a must.
You can expect rain for roughly half of the month of December in Lummen. 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 Lummen during December. It’s important to get out your snow boots and warm mittens to stay warm while you explore Lummen.
Our weather forecast can give you a great sense of what weather to expect in Lummen in December 2025.
If you’re planning to visit Lummen in the near future, we highly recommend that you review the 14 day weather forecast for Lummen before you arrive.
Temperatures
6° / 2°
Rainy Days
10
Snowy Days
5
Dry Days
16
Rainfall
109
mm
Sun Hours
6.5
Hrs