February in Arcachon is the windiest month of the year. In February, the weather in Arcachon is typically warm. Average daily high temperature in February is about 10 degrees above zero. On average, Arcachon has 16 rainy, 8 sunny, and 5 partly cloudy days in February. The rains are usually moderate. February as well as January, November, and December is considered the most uncomfortable time to visit Arcachon.