Weather in September
September witnesses the arrival of Autumn in
Fontvieille. The sea temperature averages 22.3°C (72.1°F), indicating a downfall from
August's peak temperatures. Compared to the sweltering summer months, September brings cooler weather and shorter days. The wind speed is light to moderate, making it an ideal month for outdoor activities. Autumn also brings intermittent rainfall, which can lead to fluctuations in temperature.
Sea temperature
In September, the average sea temperature is 22.3°C (72.1°F).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 22.3°C (72.1°F) water. (FYI: The Olympic swimming competition requires a water temperature between 25°C (77°F) and 28°C (82.4°F).)
Daylight
In September, the average length of the day is 12h and 30min.
On the first day of September in Fontvieille, sunrise is at 06:54 and sunset at 20:05. On the last day of the month, sunrise is at 07:27 and sunset at 19:13 CEST.
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