In September, Busto Arsizio typically sees daytime highs of 22.8°C and overnight lows around 12.9°C. Compared to the annual average high of 16.8°C, September runs +6.0°C.
September in Busto Arsizio averages a daytime high of 22.8°C and an overnight low of 12.9°C.
September runs +6.0°C compared to Busto Arsizio's annual average high of 16.8°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 22.8°C and cooler evenings around 12.9°C.