One Tree Point, New Zealand offers 2 beaches perfect for sunbathing, surfing, swimming, and more. One Tree Point, Northland, New Zealand, is known for its proximity to the scenic Whangarei Harbour and the Marsden Point Oil Refinery. The best time to travel to One Tree Point, New Zealand, is during the summer months of December to February, when the average air temperature is around 22°C (72°F) and the water temperature is approximately 20°C (68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!