Florida weather in September
In September, Florida averages 30°C by day across Miami and Orlando. Miami is the warmest at 30°C, Orlando the coolest at 30°C. The sea is 31°C.
Florida in September, place by place
Warmest first. Anywhere at 24°C or more is proper beach weather. Tap a place for its full September detail.
Heading to Florida in September?
Share the places you've saved on TikTok and Instagram for Florida to Dream Trip. It pins them on a map and builds your days around them.
Florida in September: quick answers
Is Florida hot in September?
In September, Florida averages 30°C by day across Miami and Orlando. Miami is the warmest at 30°C, Orlando the coolest at 30°C. The sea is 31°C. September is hot but wet in Miami: rainy season, so pack for showers.
Where is warmest in Florida in September?
Miami, at an average high of 30°C. The driest is Miami, with about 213 mm of rain.
Can you swim in the sea in Florida in September?
Yes: Miami (31°C) has sea temperatures of 21°C or more, comfortable without a wetsuit.
How we measured this
Florida here means Miami and Orlando: the places we measure. Figures are averages of every day from 2016 to 2025 from the Open-Meteo historical weather archive (ECMWF ERA5); sea temperatures are 2023 to 2025 averages. Rain is the average monthly total, and 150 mm or more counts as rainy season.
