Silverdale, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Silverdale, Washington, United States, is known for its scenic waterfront parks and proximity to the natural beauty of the Kitsap Peninsula. The best time to travel to Silverdale, United States, is during the summer months of June to August, when the average air temperature is around 70-75°F and the water temperature is approximately 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!