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December weather forecast in San Sebastian

Average data for 10 years

December in San Sebastian is the windiest month of the year. In December, the weather in San Sebastian is typically rainy and warm. Average daily high temperature in December is about 11 degrees above zero. On average, San Sebastian has 16 rainy, 12 cloudy, and 6 sunny days in December. Decemberas well as January, February, March, and April is considered the most uncomfortable time to visit San Sebastian.