Kissimmee Weather in September
September in Kissimmee brings very high temperatures around 32°C (90°F) during the day, dropping to 23°C (73°F) at night, with quite a bit of rainfall expected, averaging around 152 mm (6 in) for the month.
Rainfall in Kissimmee in September
Looking at the last 30 years, the data shows about 20 days with rain, averaging 152 mm (6 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Kissimmee in September
Expect highs of 32°C (90°F) in Kissimmee in September, with nights dropping to around 23°C (73°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. With overnight lows of 23°C (73°F), evenings stay pleasantly warm.
Sunshine in Kissimmee in September
With approximately 270 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.
Average water temperature in September
The water is 26°C (79°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April, October, November and December typically offer the best circumstances for Kissimmee.
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 Kissimmee's climate page.
Kissimmee Temperature in September
Min Temperature
23°C (73°F)
Max Temperature
32°C (90°F)
Water Temperature
26°C (79°F)
Chance of Rain
68%
Precipitation
152 mm (6 in)
Rainy days
20 days
Sunshine
270 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kissimmee typically stay consistent throughout September, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Kissimmee in September
Browse day-by-day weather records for Kissimmee spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kissimmee historical weather extremes in September
The extremes listed below come from historical weather data collected in Kissimmee from 1976 through 2025.
- Kissimmee recorded its highest September temperature of 36°C (97°F) on September 18, 2004.
- The coldest September day was on September 15, 2001, with a maximum of 23°C (73°F).
- Nighttime temperatures dropped to 14°C (57°F) on September 20, 1981, marking the coldest September night on record.
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Kissimmee in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! The water temperature sits at about 26°C (79°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Kissimmee in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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 Kissimmee's climate page.
Temperature Rainfall Sunshine Water Temp
See the full Kissimmee climate overview or explore weather in the United States of America.
