June in Chiayi is the windiest and the cloudiest month of the year. In June, the weather in Chiayi is typically hot. Average daily high temperature in June is about 29 degrees above zero. On average, Chiayi has 24 rainy, 5 cloudy, and 1 sunny day in June. The rains are usually heavy. June as well as May, July, August, and September is considered the most uncomfortable time to visit Chiayi.