The temperatures in Carnac in October are usually low and can range between 12°C and 17°C.
You can expect about 3 to 8 days of rain in Carnac during the month of October. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Carnac in October 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
17° / 12°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
131
mm
Sun Hours
9.6
Hrs
