Mendocino, United States offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Mendocino is known for its picturesque coastal views, the Mendocino Headlands State Park, and the Mendocino Art Center. The best time to travel to Mendocino is from September to October, with average air temperatures around 65°F (18°C) and water temperatures near 55°F (13°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!