Opotiki, New Zealand offers 1 beach perfect for sunbathing, surfing, swimming, and more. Opotiki is known for the Motu Trails, a network of scenic cycling and walking tracks. The best time to travel to Opotiki, 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!