April in Guiyang is the cloudiest month of the year. In April, the weather in Guiyang is typically warm. Average daily high temperature in April is about 17 degrees above zero. On average, Guiyang has 27 rainy, 2 sunny, and 1 cloudy day in April. The rains are usually heavy. April as well as January, February, March, and May is considered the most uncomfortable time to visit Guiyang.