December in Kota Kinabalu is the coldest month of the year. In December, the weather in Kota Kinabalu is typically hot. Average daily high temperature in December is about 28 degrees above zero. On average, Kota Kinabalu has 16 rainy, 14 cloudy, and 1 sunny day in December. The rains are usually heavy. December as well as April, May, August, and November is considered the most uncomfortable time to visit Kota Kinabalu.