France weather in September
In September, popular resorts in France (Nice, Cannes, Antibes, Ajaccio, Bastia) average 24°C by day and 18°C at night, and the sea is about 22°C. On average 50 mm of rain falls during the month.
That is 4°C cooler than in August, and in October days average 20°C.
It is good weather for both the beach and sightseeing. The sea is fine for swimming.
Warmest resorts in France in September
France weather in other months
See also
FAQ
Is it warm in France in September?
In September, popular resorts in France (Nice, Cannes, Antibes, Ajaccio, Bastia) average 24°C by day and 18°C at night, and the sea is about 22°C. On average 50 mm of rain falls during the month. It is good weather for both the beach and sightseeing.
What is the sea temperature in France in September?
About 22°C on average. The warmest water is in Bastia (24°C).
Where is it warmest in France in September?
The warmest place is Ajaccio (24°C by day), followed by Bastia (24°C) and Cannes (24°C).
Does it rain in France in September?
On average 50 mm of rain falls in the month. It is a fairly wet month, so pack a jacket.
Long-term averages from NASA POWER data (MERRA-2, 2001-2020 reanalysis, CC BY 4.0). Sea temperature is the average water surface temperature at the nearest grid point over the sea. This is climate, not a forecast for a specific day.