In September, Saint Clair Shores typically sees daytime highs of 23.1°C and overnight lows around 11.9°C. Compared to the annual average high of 14.2°C, September runs +9.0°C.
September in Saint Clair Shores averages a daytime high of 23.1°C and an overnight low of 11.9°C.
September runs +9.0°C compared to Saint Clair Shores's annual average high of 14.2°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 23.1°C and cooler evenings around 11.9°C.