Punta Santiago, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Punta Santiago is known for its proximity to the Humacao Nature Reserve and Monkey Island. The best time to travel to Punta Santiago, United States, is from December to April, with average air temperatures around 75-85°F (24-29°C) and water temperatures near 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!