If you're looking for summer vibes, the best time to travel to Guiyang is in July, April and May, when the average temperature reaches 27.01 °C, while December, January and November are the 3 sunniest months of the year, with an average of 54.1 hours.
However, if you prefer colder temperatures, make sure you visit Guiyang during January, February or December to experience an average of 5.72 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during February, December and January, when the average precipitation in Guiyang is 6.4 mm, while the months of January, February and March are drier, with an average of 0 mm.