El Sotano, Argentina offers 5 beaches perfect for sunbathing, surfing, swimming, and more. El Sotano, Rio Negro, Argentina, is known for its proximity to the stunning Nahuel Huapi National Park. The best time to travel to El Sotano, Argentina, is during the summer months of December to February, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 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!