Venado, Costa Rica offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Venado, Guanacaste, Costa Rica, is known for the Venado Caves, a popular tourist attraction featuring extensive underground limestone caverns. The best time to travel to Venado, 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!