July in Jeonju is the rainiest and the cloudiest month of the year. In July, the weather in Jeonju is typically warm. Average daily high temperature in July is about 27 degrees above zero. On average, Jeonju has 25 rainy, 5 sunny, and 1 partly cloudy day in July. The rains are usually heavy. July as well as August is considered the most uncomfortable time to visit Jeonju.