Normally the average weather in St-Nazaire during August is 16. Highs are around 22 with low temperatures being around 13. Our table below has the full details:
| Month | Degrees Celsius |
|---|---|
| Temperature | 16 |
| High Temperature | 22 |
| Low Temperature | 13 |
| Sunshine Per Day | 11 |
Useful Links: St-Nazaire Weather: Average Weather & Yearly Climate