July in Gunpo is the rainiest and the cloudiest month of the year. In July, the weather in Gunpo is typically warm. Average daily high temperature in July is about 27 degrees above zero. On average, Gunpo has 24 rainy, 5 sunny, 1 cloudy, and 1 partly cloudy day in July. The rains are usually heavy. July as well as August and December is considered the most uncomfortable time to visit Gunpo.