Siesta Key Weather in September

Thinking of visiting Siesta Key in September? Expect very high temperatures reaching 32°C (90°F) during the day, dropping to 24°C (75°F) at night, and be prepared for the wettest month of the year.

Rainfall in Siesta Key in September

With the year's heaviest rain occurring this month, it's best to be equipped with a poncho to handle the frequent downpours. The climate data from previous years indicates about 18 days of rain, averaging 190 mm (7.5 in) for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Siesta Key in September

Temperatures in Siesta Key in September top out at 32°C (90°F) and drop to 24°C (75°F) overnight. Mornings and evenings are often more comfortable than the peak afternoon hours. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Siesta Key. Our weather planner can help you explore destinations with more pleasant weather conditions.