July in Negril is the hottest month of the year. In July, the weather in Negril is typically hot. Average daily high temperature in July is about 29 degrees above zero. On average, Negril has 13 rainy, 10 sunny, 5 partly cloudy, and 3 cloudy days in July. The rains are usually moderate. July as well as May, June, August, and September is considered the most uncomfortable time to visit Negril.