The weather in Kissimmee in September is very hot. The average temperatures are between 24°C and 31°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in Kissimmee. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Kissimmee in September 2025.
If you’re planning to visit Kissimmee in the near future, we highly recommend that you review the 14 day weather forecast for Kissimmee before you arrive.
Temperatures
31° / 24°
Rainy Days
12
Snowy Days
0
Dry Days
18
Rainfall
186
mm
Sun Hours
11.4
Hrs
