Guanaquero, Chile offers 1 beach perfect for sunbathing, surfing, swimming, and more. Guanaquero, Coquimbo, Chile, is known for its beautiful beaches and the nearby Tongoy Bay. The best time to travel to Guanaquero, Chile, is from December to February, with average air temperatures around 70°F (21°C) and water temperatures near 66°F (19°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!