Mar del Plata Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 77 °F25 °C Feb 76 °F25 °C Mar 70 °F21 °C Apr 67 °F20 °C May 61 °F16 °C Jun 57 °F14 °C Jul 52 °F11 °C Aug 55 °F13 °C Sep 56 °F14 °C Oct 59 °F15 °C Nov 68 °F20 °C Dec 68 °F20 °C Humidity Jan 67% Feb 60% Mar 69% Apr 68% May 68% Jun 73% Jul 70% Aug 64% Sep 64% Oct 71% Nov 65% Dec 59% Rain Jan 55mm Feb 17mm Mar 52mm Apr 27mm May 23mm Jun 56mm Jul 31mm Aug 11mm Sep 9mm Oct 44mm Nov 28mm Dec 33mm Clouds Jan 37% Feb 11% Mar 55% Apr 35% May 57% Jun 73% Jul 57% Aug 66% Sep 35% Oct 59% Nov 48% Dec 53% Sun Jan 11UVI Feb 11UVI Mar 6UVI Apr 5UVI May 3UVI Jun 2UVI Jul 2UVI Aug 3UVI Sep 4UVI Oct 5UVI Nov 9UVI Dec 8UVI