August in Kerikeri is the rainiest month of the year. In August, the weather in Kerikeri is typically warm. Average daily high temperature in August is about 14 degrees above zero. On average, Kerikeri has 16 rainy, 10 sunny, 3 partly cloudy, and 2 cloudy days in August. The rains are usually heavy. August as well as July and September is considered the most uncomfortable time to visit Kerikeri.