Weather overview

In September, Nantes enjoys a welcoming transition into autumn. The days bring average high temperatures around 21°C (70°F), while nights are cooler, often dipping to 12°C (54°F). Expect some rainfall, usually around 60 millimetres, as the city tends to receive a mix of sunny and cloudy days. Humidity is comfortable, hovering around 80%, adding a touch of freshness to the air. Although wind speeds are generally mild, occasional breezes can be anticipated, especially closer to the Atlantic coast.

Activities and seasonal highlights

The mild September weather in Nantes is perfect for leisurely strolls around its historic streets and beautiful parks. Head over to the stunning Jardin des Plantes for a serene walk or explore the Machines of the Isle of Nantes for a unique exhibit of mechanical wonders. Don’t miss the iconic Châteaux des Ducs de Bretagne, where you can delve into the fascinating history of the region.

September also brings some lively events to town, such as the Scopitone Festival, a celebration of digital arts and electronic music, attracting creatives from all over. It's a brilliant time to mingle with locals and experience the city’s vibrant contemporary culture.

What to pack

Given the mild weather in September, it’s a good idea to pack light layers. Bring along some comfortable clothing like t-shirts and trousers for the daytime, and a sweater or light jacket for the cooler evenings. Don’t forget a sturdy pair of walking shoes for exploring the city on foot, and a compact umbrella can be handy if you encounter any unexpected showers.

FAQs

Is Nantes, France crowded during September?

Nantes enjoys a more relaxed atmosphere in September. While there are still tourists around, it’s far from the summer crowds, allowing you to explore at your own pace.

Can you swim or enjoy outdoor activities?

While the weather may not be hot enough for a swim, there are plenty of outdoor activities to enjoy. From cycling along the Loire River to exploring the city's parks, you’ll find no shortage of things to do.

What’s the best way to get around Nantes, France in September?

Getting around Nantes is easy and convenient in September. The city’s public transport system is efficient, but walking and cycling are also fantastic options, letting you take in more of the sights and sounds.