July in Nha Trang is the cloudiest month of the year. In July, the weather in Nha Trang is typically hot. Average daily high temperature in July is about 31 degrees above zero. On average, Nha Trang has 27 rainy, 3 cloudy, and 1 partly cloudy day in July. The rains are usually heavy. July as well as May, June, August, and September is considered the most uncomfortable time to visit Nha Trang.