Giem Ha, Vietnam offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Giem Ha is known for the Vinh Moc Tunnels in regard to tourism. The best time to travel to Giem Ha, Vietnam, is from November to April, with average air temperatures around 20-25°C (68-77°F) and water temperatures approximately 22-26°C (72-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!