July in Port of Spain is the rainiest and the cloudiest month of the year. In July, the weather in Port of Spain is typically warm. Average daily high temperature in July is about 27 degrees above zero. On average, Port of Spain has 27 rainy, 2 cloudy, and 2 partly cloudy 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 Port of Spain.