May in Tauranga is the sunniest month of the year. In May, the weather in Tauranga is typically warm. Average daily high temperature in May is about 16 degrees above zero. On average, Tauranga has 13 rainy, 12 sunny, 3 cloudy, and 3 partly cloudy days in May. The rains are usually heavy. May as well as June, July, August, and September is considered the most uncomfortable time to visit Tauranga.