The temperatures in Tadoussac in September are usually low and can range between 10°C and 17°C.
You can expect about 3 to 8 days of rain in Tadoussac during the month of September. 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 Tadoussac in September 2025.
If you’re planning to visit Tadoussac in the near future, we highly recommend that you review the 14 day weather forecast for Tadoussac before you arrive.
Temperatures
17° / 10°
Rainy Days
6
Snowy Days
0
Dry Days
24
Rainfall
118
mm
Sun Hours
9.8
Hrs
