August in Nanchong is the hottest month of the year. In August, the weather in Nanchong is typically hot. Average daily high temperature in August is about 32 degrees above zero. On average, Nanchong has 15 rainy, 7 partly cloudy, 5 sunny, and 4 cloudy days in August. The rains are usually heavy. August as well as January, June, July, and December is considered the most uncomfortable time to visit Nanchong.