Petacalco, Mexico offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Petacalco is known for its beautiful beaches and proximity to the larger tourist destination of Ixtapa-Zihuatanejo. The best time to travel to Petacalco, Mexico, is between November and April, with average air temperatures around 75-85°F (24-29°C) and water temperatures around 80°F (27°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!