The temperatures in Dunkerque in December are quite cold with temperatures between 5°C and 8°C, warm clothes are a must.
You can expect rain for roughly half of the month of December in Dunkerque. 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.
Please note that Dunkerque can expect a few days of snow in December.
Our weather forecast can give you a great sense of what weather to expect in Dunkerque in December 2025.
If you’re planning to visit Dunkerque in the near future, we highly recommend that you review the 14 day weather forecast for Dunkerque before you arrive.
Temperatures
8° / 5°
Rainy Days
8
Snowy Days
2
Dry Days
20
Rainfall
116
mm
Sun Hours
7.0
Hrs