July in Santo Domingo is the rainiest and the cloudiest month of the year. In July, the weather in Santo Domingo is typically hot. Average daily high temperature in July is about 30 degrees above zero. On average, Santo Domingo has 25 rainy, 3 partly cloudy, 2 cloudy, and 1 sunny day in July. The rains are usually heavy. July as well as April, May, June, and August is considered the most uncomfortable time to visit Santo Domingo.