September in Hokitika is the rainiest month of the year. In September, the weather in Hokitika is typically warm. Average daily high temperature in September is about 12 degrees above zero. On average, Hokitika has 14 rainy, 12 sunny, and 4 partly cloudy days in September. The rains are usually heavy. September as well as May, June, July, and August is considered the most uncomfortable time to visit Hokitika.