Waiinu Beach, New Zealand offers 1 beach perfect for sunbathing, surfing, swimming, and more. Taranaki, New Zealand, is known for its iconic Mount Taranaki and the stunning coastal scenery of the Surf Highway 45. The best time to visit Waiinu Beach, New Zealand, is during the summer months of December to February, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 18-20°C (64-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!