Thames, New Zealand offers 1 beach perfect for sunbathing, surfing, swimming, and more. Thames is known for its rich gold mining history and as a gateway to the Coromandel Peninsula. The best time to travel to Thames, 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 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!