July in Yushan is the rainiest, the cloudiest, and the hottest month of the year. In July, the weather in Yushan is typically hot. Average daily high temperature in July is about 31 degrees above zero. On average, Yushan has 15 rainy, 6 sunny, 6 partly cloudy, and 4 cloudy days in July. The rains are usually heavy. July as well as January and August is considered the most uncomfortable time to visit Yushan.