January in Broken Hill is the windiest and the hottest month of the year. In January, the weather in Broken Hill is typically hot. Average daily high temperature in January is about 34 degrees above zero. On average, Broken Hill has 21 sunny, 7 partly cloudy, and 3 rainy days in January. The rains are usually light. January as well as February and December is considered the most uncomfortable time to visit Broken Hill.