The temperatures in Carnac in January are quite cold with temperatures between 6°C and 9°C, warm clothes are a must.
You can expect rain for roughly half of the month of January in Carnac. 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 Carnac can expect a few days of snow in January.
Our weather forecast can give you a great sense of what weather to expect in Carnac in January 2026.
If you’re planning to visit Carnac in the near future, we highly recommend that you review the 14 day weather forecast for Carnac before you arrive.
Temperatures
9° / 6°
Rainy Days
8
Snowy Days
1
Dry Days
22
Rainfall
126
mm
Sun Hours
7.6
Hrs
