May in Erenhot is the windiest month of the year. In May, the weather in Erenhot is typically warm. Average daily high temperature in May is about 20 degrees above zero. On average, Erenhot has 15 sunny, 15 partly 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 Erenhot.