Argentine Sea, Argentina offers 1 beach perfect for sunbathing, surfing, swimming, and more. Santa Cruz is known for Los Glaciares National Park and the Perito Moreno Glacier. The best time to travel to the Argentine Sea, 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!