January in Margaret River is the sunniest month of the year. In January, the weather in Margaret River is typically warm. Average daily high temperature in January is about 21 degrees above zero. On average, Margaret River has 21 sunny, 7 partly cloudy, 2 rainy, and 1 cloudy day in January. The rains are usually light. January as well as February and December is considered the most comfortable time to visit Margaret River.