September in Saint-Tropez offers a transition from the peak summer heat to a milder, more comfortable climate. Typical conditions include warm, sunny days with average high temperatures in the mid-70s Fahrenheit (low 20s Celsius). Sea temperatures remain pleasant, making swimming and other water activities still enjoyable. Rainfall is relatively low, and the crowds thin out considerably compared to July and August.
This period presents an ideal time to experience the French Riviera town. The combination of pleasant weather, fewer tourists, and continued access to beach activities and outdoor dining makes September attractive. Historically, the end of summer has been a favored period for those seeking a more relaxed Saint-Tropez experience. This less congested atmosphere allows visitors to better appreciate the town’s charm, explore local markets, and engage in activities without the intense summer rush.