January in Santa Barbara is the rainiest and the cloudiest month of the year. In January, the weather in Santa Barbara is typically warm. Average daily high temperature in January is about 16 degrees above zero. On average, Santa Barbara has 15 sunny, 7 rainy, 7 partly cloudy, and 2 cloudy days in January. The rains are usually heavy. January as well as February, March, and December is considered the most uncomfortable time to visit Santa Barbara.