Marina, United States offers 14 beaches perfect for sunbathing, surfing, swimming, and more. Marina, California, United States, is known for its proximity to the Fort Ord National Monument and the Marina State Beach. The best time to travel to Marina, United States, is from June to September, with average air temperatures around 65-70°F and water temperatures around 55-60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!