October in Wanganui is the rainiest and the windiest month of the year. In October, the weather in Wanganui is typically warm. Average daily high temperature in October is about 14 degrees above zero. On average, Wanganui has 17 rainy, 10 sunny, 2 cloudy, and 2 partly cloudy days in October. The rains are usually heavy. October as well as May, June, July, and August is considered the most uncomfortable time to visit Wanganui.