Petorca, Chile offers 1 beach perfect for sunbathing, surfing, swimming, and more. Petorca, Valparaiso, Chile, is known for its proximity to the La Campana National Park and the Petorca River. The best time to travel to Petorca, Chile, is from November to March, with average air temperatures around 25°C (77°F) and water temperatures near 18°C (64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!