January in Melbourne is the sunniest and the warmest month of the year. In January, the weather in Melbourne is typically warm. Average daily high temperature in January is about 24 degrees above zero. On average, Melbourne has 15 sunny, 10 partly cloudy, 4 rainy, and 2 cloudy days in January. The rains are usually light. January as well as February and December is considered the most comfortable time to visit Melbourne.