In December, Mar del Plata typically sees daytime highs of 24.5°C and overnight lows around 12.1°C. Compared to the annual average high of 19.4°C, December runs +5.1°C.
December in Mar del Plata averages a daytime high of 24.5°C and an overnight low of 12.1°C.
December runs +5.1°C compared to Mar del Plata's annual average high of 19.4°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 24.5°C and cooler evenings around 12.1°C.