The best time to visit Thornton, Bay of Plenty Region, New Zealand, is during the summer months, from December to February, when the weather is warm and sunny, making it ideal for outdoor activities.During this period, you can expect average temperatures ranging from 20°C to 25°C (68°F to 77°F), with long daylight hours. This weather is superb for enjoying the local beaches, exploring the nearby Whakatāne River, or visiting attractions like the bird sanctuary at Moutohorā (Whale Island), which often requires calm sea conditions for access.Should you prefer a quieter experience with cooler but still pleasant weather, the shoulder seasons of spring (September to November) and autumn (March to May) are also excellent choices. During these times, temperatures are mild, typically between 15°C and 20°C (59°F to 68°F), and there are fewer crowds.