Tortuguilla, Cuba offers 1 beach perfect for sunbathing, surfing, swimming, and more. Tortuguilla, Guantanamo, Cuba, is known for its proximity to the Guantanamo Bay Naval Base and its unique cultural and historical significance. The best time to travel to Tortuguilla, Cuba, is from December to April, with average air temperatures around 75-85°F (24-29°C) and water temperatures about 77-82°F (25-28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!