July in Fukushima is the rainiest month of the year. In July, the weather in Fukushima is typically warm. Average daily high temperature in July is about 25 degrees above zero. On average, Fukushima has 25 rainy, 4 sunny, and 2 cloudy 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 Fukushima.