In September, Chengyang typically sees daytime highs of 28.5°C and overnight lows around 20.2°C. Compared to the annual average high of 22.3°C, September runs +6.3°C.
September in Chengyang averages a daytime high of 28.5°C and an overnight low of 20.2°C.
September runs +6.3°C compared to Chengyang's annual average high of 22.3°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 28.5°C and cooler evenings around 20.2°C.