Selbyville, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Selbyville is known for the historic Selbyville Railroad Museum and its proximity to the popular Fenwick Island. The best time to travel to Selbyville, United States, is during late spring to early summer (May to June) when the average air temperature is around 70-80°F and the nearby ocean water temperature is approximately 60-70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!