Hoai Nhon, Vietnam offers 1 beach perfect for sunbathing, surfing, swimming, and more. Hoai Nhon is known for its beautiful beaches and the historic Tam Quan Gate. The best time to travel to Hoai Nhon, 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!