August in Kaohsiung is the rainiest month of the year. In August, the weather in Kaohsiung is typically hot. Average daily high temperature in August is about 31 degrees above zero. On average, Kaohsiung has 21 rainy, 6 sunny, 2 cloudy, and 2 partly cloudy days in August. The rains are usually heavy. August as well as May, June, July, and September is considered the most uncomfortable time to visit Kaohsiung.