Langley, United States offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Langley is known for the Whidbey Island Center for the Arts and the annual Mystery Weekend event. The best time to travel to Langley, 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!