December in Yogyakarta is the coldest month of the year. In December, the weather in Yogyakarta is typically warm. Average daily high temperature in December is about 27 degrees above zero. On average, Yogyakarta has 30 rainy and 1 sunny day in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Yogyakarta.