In September, Santa Maria typically sees daytime highs of 25.7°C and overnight lows around 11.4°C. Compared to the annual average high of 21.6°C, September runs +4.1°C.
September in Santa Maria averages a daytime high of 25.7°C and an overnight low of 11.4°C.
September runs +4.1°C compared to Santa Maria's annual average high of 21.6°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 25.7°C and cooler evenings around 11.4°C.