June in Nanchang is the cloudiest month of the year. In June, the weather in Nanchang is typically warm. Average daily high temperature in June is about 27 degrees above zero. On average, Nanchang has 22 rainy, 4 cloudy, 3 sunny, and 1 partly cloudy day in June. The rains are usually heavy. June as well as March, July, and August is considered the most uncomfortable time to visit Nanchang.