June in Mukah is the sunniest and the hottest month of the year. In June, the weather in Mukah is typically hot. Average daily high temperature in June is about 30 degrees above zero. On average, Mukah has 22 rainy, 4 cloudy, 3 sunny, and 1 partly cloudy day in June. The rains are usually heavy. June as well as January, February, March, and April is considered the most uncomfortable time to visit Mukah.