June in Fukuoka is the cloudiest month of the year. In June, the weather in Fukuoka is typically warm. Average daily high temperature in June is about 23 degrees above zero. On average, Fukuoka has 22 rainy, 5 cloudy, and 3 sunny days in June. The rains are usually heavy. June as well as January, February, March, and July is considered the most uncomfortable time to visit Fukuoka.