February in São Mateus is the hottest month of the year. In February, the weather in São Mateus is typically hot. Average daily high temperature in February is about 29 degrees above zero. On average, São Mateus has 16 rainy, 12 sunny, and 1 partly cloudy day in February. The rains are usually heavy. February as well as January, March, April, and November is considered the most uncomfortable time to visit São Mateus.