June in Xieng Khouang is the cloudiest month of the year. In June, the weather in Xieng Khouang is typically warm. Average daily high temperature in June is about 25 degrees above zero. On average, Xieng Khouang has 30 rainy days in June. The rains are usually heavy. June as well as April, May, July, and August is considered the most uncomfortable time to visit Xieng Khouang.