The temperatures in Saint Nazaire in August are comfortable with low of 15°C and and high up to 23°C.
You can expect about 3 to 8 days of rain in Saint Nazaire during the month of August. 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 Saint Nazaire in August 2026.
If you’re planning to visit Saint Nazaire in the near future, we highly recommend that you review the 14 day weather forecast for Saint Nazaire before you arrive.
Temperatures
23° / 15°
Rainy Days
4
Snowy Days
0
Dry Days
27
Rainfall
61
mm
Sun Hours
10.7
Hrs
