Agua Buena, Costa Rica offers 1 beach perfect for sunbathing, surfing, swimming, and more. Agua Buena is known for its proximity to the Piedras Blancas National Park and the Golfo Dulce Forest Reserve. The best time to travel to Agua Buena, Costa Rica, 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!