Hacienda Murcielago, Costa Rica offers 1 beach perfect for sunbathing, surfing, swimming, and more. Hacienda Murcielago, Guanacaste, Costa Rica, is known for its proximity to Santa Rosa National Park and its rich biodiversity. The best time to travel to Hacienda Murcielago, 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!