While Chiayi City is a year-round destination, the best time to visit is typically during the cooler, drier months of October to April.During these months, the weather is most pleasant for exploring the city's attractions and the surrounding natural beauty. Temperatures are generally mild, making it comfortable for walking tours, visiting local markets, and enjoying outdoor activities. This period avoids the intense heat and humidity of the summer months, and also the higher chance of typhoons that can occur between June and September.For those planning to visit Alishan National Scenic Area, which is a popular day trip from Chiayi City, these months offer clearer skies and more stable weather conditions, ideal for enjoying the famous sunrise views and hiking trails.