May in Cotuí is the rainiest and the cloudiest month of the year. In May, the weather in Cotuí is typically hot. Average daily high temperature in May is about 29 degrees above zero. On average, Cotuí has 19 rainy, 8 sunny, and 4 partly cloudy days in May. The rains are usually heavy. May as well as July, August, September, and October is considered the most uncomfortable time to visit Cotuí.