April in Tawau is the sunniest month of the year. In April, the weather in Tawau is typically hot. Average daily high temperature in April is about 29 degrees above zero. On average, Tawau has 24 rainy and 6 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 Tawau.