May in Alagoinhas is the rainiest month of the year. In May, the weather in Alagoinhas is typically warm. Average daily high temperature in May is about 26 degrees above zero. On average, Alagoinhas has 21 rainy, 8 sunny, and 2 partly cloudy days in May. The rains are usually heavy. May as well as February, March, April, and June is considered the most uncomfortable time to visit Alagoinhas.