September weather forecastSaint-Tropez, France
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Saint-Tropez, France, with an average temperature fluctuating between 24.3°C (75.7°F) and 14.1°C (57.4°F).Temperature
In Saint-Tropez, entering September brings a subtle temperature decrement, reducing from August's moderately hot 27.3°C (81.1°F) to a still warm 24.3°C (75.7°F). Throughout September, the temperature in Saint-Tropez falls to an average low of 14.1°C (57.4°F).Rainfall
In Saint-Tropez, in September, during 6 rainfall days, 57mm (2.24") of precipitation is typically accumulated. In Saint-Tropez, during the entire year, the rain falls for 90 days and collects up to 712mm (28.03") of precipitation.Sea temperature
In Saint-Tropez, the average seawater temperature in September is 21.9°C (71.4°F).Note: Most people do not find pleasure in swimming when the water temperature is 21.9°C (71.4°F). Breathing becomes increasingly difficult to manage as the water temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 06:58 and sunset at 20:08. On the last day of September, in Saint-Tropez, sunrise is at 07:30 and sunset at 19:16 CEST.
Sunshine
In Saint-Tropez, the average sunshine in September is 10.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saint-Tropez, France
- Average high temperature in September: 24.3°C
The warmest month (with the highest average high temperature) is August (27.3°C).
The month with the lowest average high temperature is January (12.1°C).
- Average low temperature in September: 14.1°C
The month with the highest average low temperature is July (19.5°C).
The coldest month (with the lowest average low temperature) is December (6°C).
Average rainfall in September
Saint-Tropez, France
- Average rainfall in September: 57mm
The wettest month (with the highest rainfall) is October (104.9mm).
The driest month (with the least rainfall) is July (15.5mm).
Average rainfall days in September
Saint-Tropez, France
- Average rainfall days in September: 6 days
The months with the highest number of rainy days are January, February, March, April, November and December (9 days).
The month with the least rainy days is July (3 days).
Average sea temperature in September
Saint-Tropez, France
- Average sea temperature in September: 21.9°C
The best month for swimming (with the highest average sea temperature) is August (23.3°C).
The coldest month (with the lowest average sea temperature) is February (13.3°C).
Average daylight in September /
Average sunshine in September
Saint-Tropez, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average UV index in September
Saint-Tropez, France
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January and December (UV index 1).





