Utungake, Tonga offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Derveni is known for its proximity to the ancient site of the Derveni Papyrus and the scenic beauty of the Corinthian Gulf. The best time to travel to Utungake, Tonga, is from May to October, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 24°C (75°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!