Weather in Puerto Montt in October

Shoulder season. October sits in between. You will get good days and you will lose some. Highs sit at 14.3 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.

October ranks 7 of 12 in Puerto Montt: past the worst of the year but short of February, which is the month to book if the dates are open.

This is persistent light rain rather than storms: 15 wet days but only 2 heavy ones. It rarely cancels anything outright, and it rarely fully clears either. A jacket beats an umbrella. Layers, and a genuinely waterproof outer — at 14.3 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest October day reached 24.8 °C and the coldest night fell to 1.3 °C, and the wettest single day dropped 70 mm — roughly 71% of the month's rain in one day.

October is moderately variable: 26 mm in the driest year against 238 mm in the wettest, around an average of 99 mm. Roughly two Octobers in three land near that average, and the third does something else entirely.

Wind is light at 2.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 85%, which at 14.3 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.

How October sits in the year

The month is on the way up: 1.6 °C warmer than September, and November adds another 1.8 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in October

13.1 hours of daylight, gaining 1.4 hours across the month. That is between Puerto Montt's extremes of 15.1 and 9.2 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 15.9 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

October in Puerto Montt versus nearby

If Puerto Montt is one option among several, the nearby comparison is worth making. Santiago is a better bet in October — 12.1 °C warmer, 12 days less rain. Córdoba is a better bet in October — 14.5 °C warmer, 8 days less rain.

So: October is a compromise. February is 29 points better and is what Puerto Montt is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Puerto Montt

See all twelve months in Puerto Montt, or where else to go in October.