The Voie d'Arles has warm, sunny weather in September. It begins in Arles with temperatures around 28°C and little rain. As you move through places like Saint-Gilles and Montpellier, it's still sunny and warm, but temperatures slowly drop to the mid-20s°C.
Usually, the weather is sunny, but sometimes it can be partly cloudy with some light or heavy rain. Still, there isn't much rainfall, averaging only about 2 mm per day.
As you go to towns like Murat-sur-Vèbre and La Salvetat-sur-Agout, the weather gets cooler with temperatures dipping into the low 20s°C. While it's generally sunny, it may occasionally rain more often and be foggy.
Close to the end of the route, in Somport, it's colder with temperatures around 16°C. There's a higher chance of rain, and it can even snow. It's recommended that you be ready for changes in weather and some rain.
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