May in Santa Cruz de Barahona is the cloudiest month of the year. In May, the weather in Santa Cruz de Barahona is typically hot. Average daily high temperature in May is about 29 degrees above zero. On average, Santa Cruz de Barahona has 18 rainy, 7 partly cloudy, 5 sunny, and 1 cloudy day in May. The rains are usually heavy. May as well as June, July, August, and September is considered the most uncomfortable time to visit Santa Cruz de Barahona.