In October, Santa Rosa typically sees daytime highs of 30.8°C and overnight lows around 23.5°C. Compared to the annual average high of 31.2°C, October runs -0.4°C.
October in Santa Rosa averages a daytime high of 30.8°C and an overnight low of 23.5°C.
October runs -0.4°C compared to Santa Rosa's annual average high of 31.2°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 30.8°C and cooler evenings around 23.5°C.