Mar del Plata, Argentina offers 85 beaches perfect for sunbathing, surfing, swimming, and more. Mar del Plata is known for its beautiful beaches, the Casino Central, and the annual Mar del Plata International Film Festival. The best time to travel to Mar del Plata, Argentina, is from December to February, with average air temperatures around 75°F (24°C) and water temperatures near 70°F (21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!