August in Santa Cruz de Barahona is the hottest month of the year. In August, the weather in Santa Cruz de Barahona is typically hot. Average daily high temperature in August is about 30 degrees above zero. On average, Santa Cruz de Barahona has 17 rainy, 8 partly cloudy, and 6 sunny days in August. The rains are usually heavy. August as well as May, June, July, and September is considered the most uncomfortable time to visit Santa Cruz de Barahona.