Saint-Nazaire Weather in September

September in Saint-Nazaire typically sees daytime highs of 27°C (81°F) and nighttime lows of 15°C (59°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Saint-Nazaire in September

Historically, September sees about 8 days of rain, with a monthly average of 109 mm (4.3 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Saint-Nazaire in September

Saint-Nazaire in September gets highs of 27°C (81°F) during the day and drops to 15°C (59°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 15°C (59°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Saint-Nazaire in September

Enjoy a sunny month with about 260 hours of sunshine, the clear skies make Saint-Nazaire even more beautiful.

If you prefer dry days with pleasant temperatures, April, May and June typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.