In September, Jiujiang typically sees daytime highs of 28.2°C and overnight lows around 19.9°C. Compared to the annual average high of 20.9°C, September runs +7.3°C.
September in Jiujiang averages a daytime high of 28.2°C and an overnight low of 19.9°C.
September runs +7.3°C compared to Jiujiang's annual average high of 20.9°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 28.2°C and cooler evenings around 19.9°C.