Santa Cruz del Sur, Cuba offers 1 beach perfect for sunbathing, surfing, swimming, and more. Santa Cruz del Sur is known for its proximity to the Jardines de la Reina, a renowned marine reserve and diving destination. The best time to travel to Santa Cruz del Sur, Cuba, is from December to April, with average air temperatures around 77°F (25°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!