In December, Puerto Montt typically sees daytime highs of 18.3°C and overnight lows around 9.1°C. Compared to the annual average high of 14.9°C, December runs +3.4°C.
December in Puerto Montt averages a daytime high of 18.3°C and an overnight low of 9.1°C.
December runs +3.4°C compared to Puerto Montt's annual average high of 14.9°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 18.3°C and cooler evenings around 9.1°C.