February in San Marino is the rainiest month of the year. In February, the weather in San Marino is typically cold. Average daily high temperature in February is about 7 degrees above zero. On average, San Marino has 14 rainy, 7 sunny, 7 partly cloudy, and 1 cloudy day in February. The rains are usually heavy. February as well as January and December is considered the most uncomfortable time to visit San Marino.