In September, Puerto Montt typically sees daytime highs of 12.8°C and overnight lows around 4.6°C. Compared to the annual average high of 14.9°C, September runs -2.1°C.
September in Puerto Montt averages a daytime high of 12.8°C and an overnight low of 4.6°C.
September runs -2.1°C compared to Puerto Montt's annual average high of 14.9°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 12.8°C and cooler evenings around 4.6°C.