In February, the weather in Mont-de-Marsan is typically cold. Average daily high temperature in February is about 9 degrees above zero. On average, Mont-de-Marsan has 14 rainy, 6 sunny, 6 cloudy, and 3 partly cloudy days in February. The rains are usually heavy. February as well as January, March, May, and November is considered the most uncomfortable time to visit Mont-de-Marsan.