Bai Nha, Vietnam offers 1 beach perfect for sunbathing, surfing, swimming, and more. Bai Nha, Kien Giang, Vietnam, is known for its proximity to Phu Quoc Island and the Phu Quoc National Park. The best time to travel to Bai Nha, Vietnam, is from December to April, with average air temperatures around 25-30°C (77-86°F) and water temperatures approximately 24-28°C (75-82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!