In May, the weather in Maracanaú is typically hot. Average daily high temperature in May is about 29 degrees above zero. On average, Maracanaú has 20 rainy, 6 sunny, 3 partly cloudy, and 2 cloudy days in May. The rains are usually heavy. May as well as January, February, March, and April is considered the most uncomfortable time to visit Maracanaú.