May in Maldonado is the cloudiest month of the year. In May, the weather in Maldonado is typically warm. Average daily high temperature in May is about 17 degrees above zero. On average, Maldonado has 9 rainy, 8 sunny, 7 cloudy, and 7 partly cloudy days in May. The rains are usually heavy. May as well as June, July, August, and September is considered the most uncomfortable time to visit Maldonado.