February in Itanhaém is the warmest month of the year. In February, the weather in Itanhaém is typically warm. Average daily high temperature in February is about 27 degrees above zero. On average, Itanhaém has 25 rainy, 2 sunny, and 2 cloudy days in February. The rains are usually heavy. February as well as January, March, October, and November is considered the most uncomfortable time to visit Itanhaém.