March in Lagoa is the rainiest month of the year. In March, the weather in Lagoa is typically warm. Average daily high temperature in March is about 18 degrees above zero. On average, Lagoa has 13 sunny, 9 rainy, 7 partly cloudy, and 2 cloudy days in March. The rains are usually moderate. March as well as January, February, and December is considered the most uncomfortable time to visit Lagoa.