October in New Plymouth is the windiest month of the year. In October, the weather in New Plymouth is typically warm. Average daily high temperature in October is about 13 degrees above zero. On average, New Plymouth has 21 rainy, 6 sunny, 3 cloudy, and 1 partly cloudy day in October. The rains are usually heavy. October as well as May, June, July, and August is considered the most uncomfortable time to visit New Plymouth.