Quetalco, Chile offers 1 beach perfect for sunbathing, surfing, swimming, and more. Quetalco is known for its stunning views of the Andes Mountains and the picturesque Lake Llanquihue. The best time to travel to Quetalco, 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 59°F (15°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!