January in Zigong is the coldest month of the year. In January, the weather in Zigong is typically cold. Average daily high temperature in January is about 9 degrees above zero. On average, Zigong has 13 cloudy, 9 rainy, 5 sunny, and 4 partly cloudy days in January. The rains are usually light. January as well as March, April, May, and June is considered the most uncomfortable time to visit Zigong.