In September, Chitose typically sees daytime highs of 21.4°C and overnight lows around 11.9°C. Compared to the annual average high of 11.7°C, September runs +9.6°C.
September in Chitose averages a daytime high of 21.4°C and an overnight low of 11.9°C.
September runs +9.6°C compared to Chitose's annual average high of 11.7°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 21.4°C and cooler evenings around 11.9°C.