July in Te Anau is the coldest month of the year. In July, the weather in Te Anau is typically cold. Average daily high temperature in July is about 5 degrees above zero. On average, Te Anau has 22 rainy, 4 sunny, 4 partly cloudy, and 1 cloudy day in July. The rains are usually heavy. July as well as January, March, April, and May is considered the most uncomfortable time to visit Te Anau.