October in Santa Susana is the cloudiest month of the year. In October, the weather in Santa Susana is typically warm. Average daily high temperature in October is about 20 degrees above zero. On average, Santa Susana has 12 rainy, 8 partly cloudy, 7 sunny, and 4 cloudy days in October. The rains are usually heavy. October as well as January, February, March, and April is considered the most uncomfortable time to visit Santa Susana.