Puerto Penasco, Mexico offers 18 beaches perfect for sunbathing, surfing, swimming, and more. Puerto Penasco is known for its beautiful beaches along the Sea of Cortez, such as Sandy Beach and Playa Bonita, and the nearby El Pinacate y Gran Desierto de Altar Biosphere Reserve. The best time to travel to Puerto Penasco, Mexico, is from October to May, with average air temperatures ranging from 65-85°F and water temperatures around 70-75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!