In September, Kalisz typically sees daytime highs of 19.3°C and overnight lows around 8.4°C. Compared to the annual average high of 12.6°C, September runs +6.6°C.
September in Kalisz averages a daytime high of 19.3°C and an overnight low of 8.4°C.
September runs +6.6°C compared to Kalisz's annual average high of 12.6°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 19.3°C and cooler evenings around 8.4°C.