June in Chiayi is the rainiest and the cloudiest month of the year. In June, the weather in Chiayi is typically hot. Average daily high temperature in June is about 30 degrees above zero. On average, Chiayi has 23 rainy, 3 sunny, 2 cloudy, and 2 partly cloudy days in June. The rains are usually heavy. June as well as May, July, and August is considered the most uncomfortable time to visit Chiayi.