Cabo Blanco, Argentina offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Cabo Blanco, Santa Cruz, Argentina, is known for the Cabo Blanco Nature Reserve, which is a popular destination for birdwatching and observing marine wildlife. The best time to travel to Cabo Blanco, Argentina, is from December to February, with average air temperatures around 70°F (21°C) and water temperatures near 60°F (16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!