In September, Montego Bay typically sees daytime highs of 30.8°C and overnight lows around 22.2°C. Compared to the annual average high of 29.8°C, September runs +1.1°C.
September in Montego Bay averages a daytime high of 30.8°C and an overnight low of 22.2°C.
September runs +1.1°C compared to Montego Bay's annual average high of 29.8°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 30.8°C and cooler evenings around 22.2°C.