September in Kuala Terengganu is the cloudiest month of the year. In September, the weather in Kuala Terengganu is typically hot. Average daily high temperature in September is about 30 degrees above zero. On average, Kuala Terengganu has 28 rainy, 1 sunny, and 1 cloudy day in September. The rains are usually heavy. September as well as January, May, June, and July is considered the most uncomfortable time to visit Kuala Terengganu.