The temperatures in Saint Brieuc in December are quite cold with temperatures between 6°C and 10°C, warm clothes are a must.
You can expect rain for roughly half of the month of December in Saint Brieuc. 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 Saint Brieuc can expect a few days of snow in December.
Our weather forecast can give you a great sense of what weather to expect in Saint Brieuc in December 2026.
If you’re planning to visit Saint Brieuc in the near future, we highly recommend that you review the 14 day weather forecast for Saint Brieuc before you arrive.
Temperatures
10° / 6°
Rainy Days
8
Snowy Days
1
Dry Days
21
Rainfall
97
mm
Sun Hours
7.5
Hrs
