In September, Mazatlan typically sees daytime highs of 33.0°C and overnight lows around 23.9°C. Compared to the annual average high of 29.9°C, September runs +3.0°C.
September in Mazatlan averages a daytime high of 33.0°C and an overnight low of 23.9°C.
September runs +3.0°C compared to Mazatlan's annual average high of 29.9°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 33.0°C and cooler evenings around 23.9°C.