Cardenas, Nicaragua offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Cardenas is known for its proximity to Lake Nicaragua and the Ometepe Island. The best time to travel to Cardenas, Nicaragua, is from December to April, with average air temperatures around 80°F (27°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!