January in Coonamble is the rainiest and the hottest month of the year. In January, the weather in Coonamble is typically hot. Average daily high temperature in January is about 33 degrees above zero. On average, Coonamble has 20 sunny, 8 partly cloudy, and 3 rainy days in January. The rains are usually moderate. January as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most uncomfortable time to visit Coonamble.