Wybung, Australia offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Wybung, New South Wales, Australia, is known for the Munmorah State Conservation Area. The best time to travel to Wybung, Australia, is during the late spring to early autumn (November to April), with average air temperatures ranging from 18°C to 26°C and water temperatures around 20°C to 24°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!