Alameda del Siboney, Cuba offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Alameda del Siboney, Havana, Cuba, is known for its proximity to the historic and vibrant district of Old Havana. The best time to travel to Alameda del Siboney, Cuba, is from December to April, with average air temperatures around 75-85°F (24-29°C) and water temperatures near 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!