Cabo San Pablo, Argentina offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Cabo San Pablo is known for the shipwreck of the Desdemona, a popular tourist attraction in Tierra del Fuego, Argentina. The best time to travel to Cabo San Pablo, Argentina, is during the summer months of December to February, when the average air temperature is around 55-65°F (13-18°C) and the water temperature is approximately 50-55°F (10-13°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!