In September, Santa Maria typically sees daytime highs of 21.3°C and overnight lows around 11.8°C. Compared to the annual average high of 24.1°C, September runs -2.8°C.
September in Santa Maria averages a daytime high of 21.3°C and an overnight low of 11.8°C.
September runs -2.8°C compared to Santa Maria's annual average high of 24.1°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 21.3°C and cooler evenings around 11.8°C.