June in Kowloon is the rainiest and the cloudiest month of the year. In June, the weather in Kowloon is typically hot. Average daily high temperature in June is about 30 degrees above zero. On average, Kowloon has 26 rainy, 3 cloudy, and 1 partly cloudy day in June. The rains are usually heavy. June as well as May, July, August, and September is considered the most uncomfortable time to visit Kowloon.