November in San Sebastian is the rainiest and the windiest month of the year. In November, the weather in San Sebastian is typically warm. Average daily high temperature in November is about 14 degrees above zero. On average, San Sebastian has 18 rainy, 5 sunny, 5 partly cloudy, and 2 cloudy days in November. The rains are usually heavy. November as well as January, February, March, and April is considered the most uncomfortable time to visit San Sebastian.