In September, Norrkoeping typically sees daytime highs of 15.9°C and overnight lows around 7.0°C. Compared to the annual average high of 10.2°C, September runs +5.8°C.
September in Norrkoeping averages a daytime high of 15.9°C and an overnight low of 7.0°C.
September runs +5.8°C compared to Norrkoeping's annual average high of 10.2°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 15.9°C and cooler evenings around 7.0°C.