Clallam Bay, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Clallam Bay is known for its proximity to Olympic National Park and the Strait of Juan de Fuca. The best time to travel to Clallam Bay, United States, is during the summer months of July and August, when the average air temperature is around 65°F (18°C) and the water temperature is approximately 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!