Punta Manzanillo, Costa Rica offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Punta Manzanillo, Guanacaste, Costa Rica, is known for its proximity to the Santa Rosa National Park and the beautiful beaches of the Papagayo Peninsula. The best time to travel to Punta Manzanillo, Costa Rica, is from February 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!