July in Whangarei is the windiest and the coldest month of the year. In July, the weather in Whangarei is typically warm. Average daily high temperature in July is about 13 degrees above zero. On average, Whangarei has 13 rainy, 9 sunny, 7 partly cloudy, and 2 cloudy days in July. The rains are usually heavy. July as well as August and September is considered the most uncomfortable time to visit Whangarei.