How long is the Jianshui rainy season?

Five months. According to relevant meteorological data, the rainy season in southern China is April-September, and that in northern China is July-August. Jianshui County is one of the counties under the jurisdiction of Honghe Hani and Yi Autonomous Prefecture in Yunnan Province. It is located on the north bank of Honghe in the south of Yunnan Province and belongs to the southern region, so its rainy season lasts for five months from April to September.