In September, Kissimmee typically sees daytime highs of 31.9°C and overnight lows around 21.9°C. Compared to the annual average high of 28.1°C, September runs +3.8°C.
September in Kissimmee averages a daytime high of 31.9°C and an overnight low of 21.9°C.
September runs +3.8°C compared to Kissimmee's annual average high of 28.1°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 31.9°C and cooler evenings around 21.9°C.