Palo Seco, Toa Baja, Puerto Rico, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Palo Seco, Toa Baja, Puerto Rico, is known for its proximity to the historic San Juan National Historic Site and the beautiful beaches of Isla de Cabras. The best time to travel to Palo Seco, Toa Baja, Puerto Rico, is from December to April, with average air temperatures around 75-85°F (24-29°C) and water temperatures near 79-82°F (26-28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!