In March, Santa Rosa typically sees daytime highs of 29.1°C and overnight lows around 18.4°C. Compared to the annual average high of 25.7°C, March runs +3.3°C.
March in Santa Rosa averages a daytime high of 29.1°C and an overnight low of 18.4°C.
March runs +3.3°C compared to Santa Rosa's annual average high of 25.7°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 29.1°C and cooler evenings around 18.4°C.