January in Nambour is the windiest, the cloudiest, and the warmest month of the year. In January, the weather in Nambour is typically warm. Average daily high temperature in January is about 25 degrees above zero. On average, Nambour has 18 rainy, 9 sunny, and 4 partly cloudy days in January. The rains are usually heavy. January as well as February and March is considered the most uncomfortable time to visit Nambour.