In September, Ilion typically sees daytime highs of 26.8°C and overnight lows around 16.4°C. Compared to the annual average high of 20.5°C, September runs +6.4°C.
September in Ilion averages a daytime high of 26.8°C and an overnight low of 16.4°C.
September runs +6.4°C compared to Ilion's annual average high of 20.5°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 26.8°C and cooler evenings around 16.4°C.