January weather forecast in Wanganui

January in Wanganui is the sunniest month of the year. In January, the weather in Wanganui is typically warm. Average daily high temperature in January is about 19 degrees above zero. On average, Wanganui has 15 sunny, 8 partly cloudy, 6 rainy, and 2 cloudy days in January. The rains are usually heavy.