In September, Liberec typically sees daytime highs of 17.0°C and overnight lows around 7.7°C. Compared to the annual average high of 10.9°C, September runs +6.1°C.
September in Liberec averages a daytime high of 17.0°C and an overnight low of 7.7°C.
September runs +6.1°C compared to Liberec's annual average high of 10.9°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 17.0°C and cooler evenings around 7.7°C.