July in Whangamata is the windiest and the coldest month of the year. In July, the weather in Whangamata is typically warm. Average daily high temperature in July is about 12 degrees above zero. On average, Whangamata has 11 sunny, 10 partly cloudy, 9 rainy, and 1 cloudy day in July. The rains are usually heavy. July as well as June, August, and September is considered the most uncomfortable time to visit Whangamata.