In September, Sault Ste. Marie typically sees daytime highs of 17.6°C and overnight lows around 7.6°C. Compared to the annual average high of 9.1°C, September runs +8.4°C.
September in Sault Ste. Marie averages a daytime high of 17.6°C and an overnight low of 7.6°C.
September runs +8.4°C compared to Sault Ste. Marie's annual average high of 9.1°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 17.6°C and cooler evenings around 7.6°C.