Buckhorn, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Buckhorn, Washington, United States, is known for Olympic National Park. The best time to travel to Buckhorn, United States, is in late spring or early fall when the average air temperature is around 70°F (21°C) and water temperature is approximately 65°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!