In September, Heihe typically sees daytime highs of 17.8°C and overnight lows around 5.8°C. Compared to the annual average high of 5.8°C, September runs +12.0°C.
September in Heihe averages a daytime high of 17.8°C and an overnight low of 5.8°C.
September runs +12.0°C compared to Heihe's annual average high of 5.8°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 17.8°C and cooler evenings around 5.8°C.