Mission Bay, New Zealand offers 1 beach perfect for sunbathing, surfing, swimming, and more. Mission Bay, Auckland, New Zealand, is known for its scenic beach, Michael Joseph Savage Memorial, and vibrant dining scene. The best time to visit Mission 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 18-21°C (64-70°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!