Waitaria Bay, New Zealand offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Waitaria Bay, Marlborough, New Zealand, is known for its proximity to the scenic Marlborough Sounds and the Queen Charlotte Track. The best time to visit Waitaria Bay, 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!