Steilacoom, United States offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Steilacoom is known for its historic sites like the Steilacoom Historical Museum and the Nathaniel Orr Home. The best time to travel to Steilacoom, United States, is during the summer months of July and August, when the average air temperature is around 70°F (21°C) and the water temperature is approximately 60°F (16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!