Culebra, United States offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Culebra is known for Flamenco Beach, Culebra National Wildlife Refuge, and Culebrita Island. The best time to travel to Culebra, United States, is from December to April, with average air temperatures around 80°F (27°C) and water temperatures near 79°F (26°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!