Puerto Montt in December
In December, Puerto Montt averages 17°C (62°F) during the day and 11°C (52°F) at night, with around 13 days of rain (105 mm total).
High seasonConditions are cool — bring a jacket for evenings. Plan for unsettled weather and bring rain gear.
December in Puerto Montt is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).
How December compares to the rest of the year in Puerto Montt
December is one of the warmest months in Puerto Montt (3rd of 12) and moderately rainy compared to the rest of the year (9th of 12). Daytime temperature runs 3°C above the annual average (14°C). December runs 2°C warmer than November (15°C) and warms a further 1°C into January (18°C).
December sunrise & sunset in Puerto Montt
Times shown for Puerto Montt local time (America/Santiago), calculated for the 15th of December. They shift by a few minutes day to day across the month.
Photography light in Puerto Montt — December
Golden-hour and blue-hour windows for the 15th of December, in Puerto Montt's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Puerto Montt in December
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on December's tier (High season) and Puerto Montt's popularity.
Crowds & pricing — December in Puerto Montt
This is a busy month in Puerto Montt — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: comfortable tourism weather
Sun & mosquito risk — December in Puerto Montt
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Puerto Montt in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 18°C / 64°F | 12°C / 53°F | 86 mm | 11 | — |
| February | 18°C / 65°F | 12°C / 54°F | 66 mm | 9 | — |
| March | 17°C / 62°F | 11°C / 52°F | 118 mm | 12 | — |
| April | 15°C / 58°F | 9°C / 49°F | 176 mm | 15 | — |
| May | 13°C / 55°F | 8°C / 46°F | 221 mm | 19 | — |
| June | 10°C / 51°F | 6°C / 42°F | 269 mm | 20 | — |
| July | 10°C / 50°F | 5°C / 42°F | 257 mm | 21 | — |
| August | 11°C / 51°F | 6°C / 42°F | 268 mm | 22 | — |
| September | 12°C / 53°F | 6°C / 43°F | 169 mm | 19 | — |
| October | 13°C / 56°F | 7°C / 45°F | 155 mm | 18 | — |
| November | 15°C / 59°F | 9°C / 48°F | 126 mm | 15 | — |
| December | 17°C / 62°F | 11°C / 52°F | 105 mm | 13 | — |
Other cities with similar December weather
🌍 See the full ranked list of climate twins for Puerto Montt in December →
Frequently asked questions
How hot is Puerto Montt in December?
In December, Puerto Montt averages a high of 17°C (62°F) and a low of 11°C (52°F) — generally mild and pleasant.
Does it rain a lot in Puerto Montt in December?
December can be fairly wet in Puerto Montt, with about 13 rainy days on average.
Is December a good time to visit Puerto Montt?
December is mild and pleasant. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Puerto Montt in December?
Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full December packing list for Puerto Montt for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.