In September, Syracuse typically sees daytime highs of 22.4°C and overnight lows around 10.5°C. Compared to the annual average high of 13.7°C, September runs +8.7°C.
September in Syracuse averages a daytime high of 22.4°C and an overnight low of 10.5°C.
September runs +8.7°C compared to Syracuse's annual average high of 13.7°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 22.4°C and cooler evenings around 10.5°C.