Castle Rock, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Castle Rock, Washington, United States, is known for its proximity to Mount St. Helens and the Mount St. Helens Visitor Center. The best time to travel to Castle Rock, United States, is during the summer months of June to August, when the average air temperature is around 70-85°F (21-29°C) and water activities are limited due to the lack of large bodies of water. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
