Nuku alofa, Tonga offers 1 beach perfect for sunbathing, surfing, swimming, and more. Nuku alofa is known for the Royal Palace of Tonga and the Talamahu Market. The best time to travel to Nuku'alofa, Tonga, is from May to October, with average air temperatures around 24-28°C (75-82°F) and water temperatures about 25-27°C (77-81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!