September weather forecast and climate
Rotonda West, FL US

• Average sea temperature in September: 84.9°F

The best month for swimming (with the highest average sea temperature) is August (87°F).
The coldest month (with the lowest average sea temperature) is January (65.3°F).

• Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.8h).
The month with shortest days is December (Average daylight: 10.5h).