Tarcoles, Costa Rica offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Tarcoles is known for the Tarcoles River, famous for its large population of American crocodiles. The best time to travel to Tarcoles, Costa Rica, is from December to April, with average air temperatures around 85°F (29°C) and water temperatures near 82°F (28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!