In September, Chillan typically sees daytime highs of 17.1°C and overnight lows around 4.4°C. Compared to the annual average high of 20.6°C, September runs -3.5°C.
September in Chillan averages a daytime high of 17.1°C and an overnight low of 4.4°C.
September runs -3.5°C compared to Chillan's annual average high of 20.6°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 17.1°C and cooler evenings around 4.4°C.