Oreti Beach, New Zealand offers 1 beach perfect for sunbathing, surfing, swimming, and more. Oreti Beach, Southland, New Zealand, is known for its association with the legendary motorcyclist Burt Munro. The best time to visit Oreti Beach, New Zealand, is during the summer months of December to February, when the average air temperature is around 20°C (68°F) and the water temperature is approximately 16°C (61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!