January in Daegu is the coldest month of the year. In January, the weather in Daegu is typically cold. Average daily high temperature in January is about 4 degrees above zero. On average, Daegu has 18 sunny, 9 partly cloudy, 3 rainy, and 1 cloudy day in January. The rains are usually light. January as well as February, July, August, and December is considered the most uncomfortable time to visit Daegu.