Phu Yen, Vietnam offers 1 beach perfect for sunbathing, surfing, swimming, and more. Phu Yen is known for Ganh Da Dia, Bai Xep Beach, and Vung Ro Bay. The best time to travel to Phu Yen, Vietnam, is from January to August, with average air temperatures ranging from 25°C to 30°C and water temperatures around 27°C to 29°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!