July in Pinar del Rio is the hottest month of the year. In July, the weather in Pinar del Rio is typically hot. Average daily high temperature in July is about 31 degrees above zero. On average, Pinar del Rio has 19 rainy and 12 sunny days in July. The rains are usually heavy. July as well as June, August, September, and October is considered the most uncomfortable time to visit Pinar del Rio.