In September, Miami typically sees daytime highs of 30.4°C and overnight lows around 24.7°C. Compared to the annual average high of 27.4°C, September runs +2.9°C.
September in Miami averages a daytime high of 30.4°C and an overnight low of 24.7°C.
September runs +2.9°C compared to Miami's annual average high of 27.4°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 30.4°C and cooler evenings around 24.7°C.