January in Santa Ana is the sunniest month of the year. In January, the weather in Santa Ana is typically warm. Average daily high temperature in January is about 24 degrees above zero. On average, Santa Ana has 18 partly cloudy, 10 sunny, 2 rainy, and 1 cloudy day in January. The rains are usually light. January as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Santa Ana.