San Quentin, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. San Quentin, California, United States, is known for the San Quentin State Prison, which is one of the most famous prisons in the United States. The best time to travel to San Quentin, United States, is from June to September, with average air temperatures around 70°F (21°C) and water temperatures near 60°F (16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
