Hot Water Beach, New Zealand offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Hot Water Beach, Waikato, New Zealand, is known for its unique geothermal activity where visitors can dig their own hot pools in the sand. The best time to visit Hot Water Beach, New Zealand, is during the summer months of December to February, when the average air temperature is around 24°C (75°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!