In September, Shanhaiguan typically sees daytime highs of 23.8°C and overnight lows around 11.4°C. Compared to the annual average high of 14.7°C, September runs +9.1°C.
September in Shanhaiguan averages a daytime high of 23.8°C and an overnight low of 11.4°C.
September runs +9.1°C compared to Shanhaiguan's annual average high of 14.7°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 23.8°C and cooler evenings around 11.4°C.