December in Kissimmee averages a daily high of 23.7°C with nights around 11.2°C. Expect roughly 6.3 wet days totalling 55.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Kissimmee is November–April.
Based on KISSIMMEE 2, FL US (3.2km), 1995–2024. 28 years of December data.