July, much like June, is not a popular month for vacations in the Dominican Republic, experiencing a low season. Sudden rains typically arrive around the middle of the month. Daytime temperatures average around +31°C, nighttime temperatures at +23°C, and the sea warms up to +28°C. Santo Domingo tends to be the rainiest region, while Barahona is one of the driest.
Swimming in the sea can be very pleasant during dry days, but it's essential to time your sunbathing carefully. It's better to do so either early in the morning or after 15-16 hours in the day. A summer vacation in the Dominican Republic can be comfortable and interesting if you're prepared for the conditions.