Hien An, Vietnam offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Fiddletown, New South Wales, Australia, is known for its proximity to the Ku-ring-gai Chase National Park. The best time to travel to Hien An, Vietnam, is from February to April, with average air temperatures around 25-30°C (77-86°F) and water temperatures approximately 26-28°C (79-82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!