In September, Cary typically sees daytime highs of 27.9°C and overnight lows around 15.5°C. Compared to the annual average high of 21.5°C, September runs +6.4°C.
September in Cary averages a daytime high of 27.9°C and an overnight low of 15.5°C.
September runs +6.4°C compared to Cary's annual average high of 21.5°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 27.9°C and cooler evenings around 15.5°C.