April in Kuala Belait is the sunniest month of the year. In April, the weather in Kuala Belait is typically hot. Average daily high temperature in April is about 29 degrees above zero. On average, Kuala Belait has 28 rainy and 2 sunny days in April. The rains are usually heavy. April as well as January, February, March, and May is considered the most uncomfortable time to visit Kuala Belait.