In September, Bayan typically sees daytime highs of 20.5°C and overnight lows around 7.7°C. Compared to the annual average high of 9.1°C, September runs +11.4°C.
September in Bayan averages a daytime high of 20.5°C and an overnight low of 7.7°C.
September runs +11.4°C compared to Bayan's annual average high of 9.1°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 20.5°C and cooler evenings around 7.7°C.