Centinela del Mar, Argentina offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Centinela del Mar is known for its beautiful beaches and the nearby Mar del Plata, a popular coastal resort city. The best time to travel to Centinela del Mar, Argentina, is from December to February, with average air temperatures around 75°F (24°C) and water temperatures near 68°F (20°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!