Los Osos, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Los Osos, California, United States, is known for the Elfin Forest and Montaña de Oro State Park. The best time to travel to Los Osos is from June to September, with average air temperatures around 65-75°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!
