January in Thargomindah is the rainiest and the hottest month of the year. In January, the weather in Thargomindah is typically hot. Average daily high temperature in January is about 35 degrees above zero. On average, Thargomindah has 21 sunny, 8 partly cloudy, and 2 rainy days in January. The rains are usually moderate. January as well as February and December is considered the most uncomfortable time to visit Thargomindah.