The best time to go to Mill Road, Southland, New Zealand is during the summer months, from December to February, when the weather is at its warmest and most settled.During this period, you'll experience longer daylight hours and mild temperatures, making it ideal for outdoor activities like hiking, cycling, and exploring the natural beauty of the region. This is particularly beneficial for those looking to experience the walking tracks and enjoy the coastal areas without the chill of winter.For those interested in fishing or water sports, the summer months offer the best conditions. The rivers and lakes are more accessible, and the ocean is calmer, providing a more enjoyable experience.