July in Santo Domingo is the windiest and the sunniest month of the year. In July, the weather in Santo Domingo is typically warm. Average daily high temperature in July is about 24 degrees above zero. On average, Santo Domingo has 30 rainy and 1 sunny day in July. The rains are usually heavy. July as well as January, February, March, and April is considered the most uncomfortable time to visit Santo Domingo.