In September, Guetersloh typically sees daytime highs of 18.9°C and overnight lows around 9.5°C. Compared to the annual average high of 13.2°C, September runs +5.8°C.
September in Guetersloh averages a daytime high of 18.9°C and an overnight low of 9.5°C.
September runs +5.8°C compared to Guetersloh's annual average high of 13.2°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 18.9°C and cooler evenings around 9.5°C.