Moccasin, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Moccasin, California, United States, is known for its proximity to the Hetch Hetchy Reservoir and the historic Moccasin Powerhouse. The best time to travel to Moccasin, United States, is in late spring (May), when the average air temperature is around 70°F (21°C) and the nearby water temperature is approximately 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!