In September, Weihai typically sees daytime highs of 23.8°C and overnight lows around 18.7°C. Compared to the annual average high of 14.6°C, September runs +9.2°C.
September in Weihai averages a daytime high of 23.8°C and an overnight low of 18.7°C.
September runs +9.2°C compared to Weihai's annual average high of 14.6°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 23.8°C and cooler evenings around 18.7°C.