Fatumu, Tonga offers 1 beach perfect for sunbathing, surfing, swimming, and more. Fatumu is known for its proximity to the Ha'amonga 'a Maui Trilithon, a significant historical and archaeological site. The best time to travel to Fatumu, Tonga, is from May to October, with average air temperatures around 24-27°C (75-81°F) and water temperatures approximately 25-28°C (77-82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!