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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.

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Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our Siesta Key's climate page.

Siesta Key Temperature in September

Min TemperatureMin Temperature 24°C (75°F)  
Max TemperatureMax Temperature 32°C (90°F)  
Chance of RainChance of Rain 60%  
PrecipitationPrecipitation 190 mm (7.5 in)  
Rainy daysRainy days 18 days  

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Siesta Key in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can.

What To Do in Siesta Key in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling
7/10
Walking
7/10
Camping
6/10
Outdoor sports
7/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our Siesta Key's climate page.

More climate data for Siesta Key