In September, Gelsenkirchen typically sees daytime highs of 19.3°C and overnight lows around 9.9°C. Compared to the annual average high of 13.6°C, September runs +5.6°C.
September in Gelsenkirchen averages a daytime high of 19.3°C and an overnight low of 9.9°C.
September runs +5.6°C compared to Gelsenkirchen's annual average high of 13.6°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 19.3°C and cooler evenings around 9.9°C.