In September, Mar del Plata typically sees daytime highs of 16.0°C and overnight lows around 5.2°C. Compared to the annual average high of 19.4°C, September runs -3.4°C.
September in Mar del Plata averages a daytime high of 16.0°C and an overnight low of 5.2°C.
September runs -3.4°C compared to Mar del Plata's annual average high of 19.4°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 16.0°C and cooler evenings around 5.2°C.