Lago Ranco, Chile offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Lago Ranco is known for its stunning Lago Ranco Lake and the picturesque Futrono area. The best time to travel to Lago Ranco, Chile, is during the summer months of December to February, when the average air temperature is around 68°F (20°C) and the water temperature is approximately 64°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!