Mangawhai Heads, New Zealand offers 1 beach perfect for sunbathing, surfing, swimming, and more. Mangawhai Heads is known for its stunning Mangawhai Heads Beach and the Mangawhai Cliffs Walkway. The best time to travel to Mangawhai Heads, New Zealand, is during the summer months of December to February, when the average air temperature is around 24°C (75°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!