The temperatures in Saint Malo in December are quite cold with temperatures between 7°C and 10°C, warm clothes are a must.
You can expect rain for roughly half of the month of December in Saint Malo. 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 Malo 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 Malo in December 2025.
If you’re planning to visit Saint Malo in the near future, we highly recommend that you review the 14 day weather forecast for Saint Malo before you arrive.
Temperatures
10° / 7°
Rainy Days
9
Snowy Days
1
Dry Days
21
Rainfall
120
mm
Sun Hours
7.3
Hrs