July in Cam Ranh Bay is the cloudiest month of the year. In July, the weather in Cam Ranh Bay is typically hot. Average daily high temperature in July is about 30 degrees above zero. On average, Cam Ranh Bay has 17 rainy, 12 cloudy, and 2 sunny days in July. The rains are usually moderate. July as well as September, October, November, and December is considered the most uncomfortable time to visit Cam Ranh Bay.