May in Yinchuan is the windiest and the cloudiest month of the year. In May, the weather in Yinchuan is typically warm. Average daily high temperature in May is about 22 degrees above zero. On average, Yinchuan has 16 partly cloudy, 10 sunny, 4 cloudy, and 1 rainy day in May. The rains are usually light. May as well as June, August, and September is considered the most comfortable time to visit Yinchuan.