July in Gimpo is the rainiest and the cloudiest month of the year. In July, the weather in Gimpo is typically warm. Average daily high temperature in July is about 27 degrees above zero. On average, Gimpo has 17 rainy, 5 cloudy, 5 partly cloudy, and 4 sunny days in July. The rains are usually heavy. July as well as January, February, March, and August is considered the most uncomfortable time to visit Gimpo.