In March, Santa Rosa typically sees daytime highs of 27.6°C and overnight lows around 12.5°C. Compared to the annual average high of 23.4°C, March runs +4.2°C.
March in Santa Rosa averages a daytime high of 27.6°C and an overnight low of 12.5°C.
March runs +4.2°C compared to Santa Rosa's annual average high of 23.4°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 27.6°C and cooler evenings around 12.5°C.