Burien, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Burien is known for Seahurst Park and its scenic beachfront along Puget Sound. The best time to travel to Burien, United States, is during the summer months of July and August, when the average air temperature is around 75°F (24°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!