Porta del Sol, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Porta del Sol, Puerto Rico, United States, is known for its stunning beaches like Rincon and Cabo Rojo, the historic town of San German, and the Cabo Rojo Lighthouse. The best time to travel to Porta del Sol, Puerto Rico, is from December to April, with average air temperatures around 75-85°F and water temperatures near 80°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!