Puerto Montt Weather in December
December in Puerto Montt sees daytime temperatures around 19°C (66°F) and lows of 10°C (50°F) at night. With around 122 mm (4.8 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Puerto Montt in December
Historically, approximately 3 days this month are expected to have rain, averaging 122 mm (4.8 in). Showers tend to be short but heavy rather than persistent drizzle. When it rains, it usually means it, but it doesn't last long.
Temperature in Puerto Montt in December
In December, Puerto Montt gets pleasant temperatures, with highs of 19°C (66°F). Nights cool to around 10°C (50°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 10°C (50°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Puerto Montt in December
Expect a lot of sunshine this month, with about 198 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in Puerto Montt in December
Wind speeds average 4 m/s (8 knots) during December. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.If your ideal day consists of dry skies and pleasant temperatures, January and February typically offer the best circumstances for Puerto Montt.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Chile, check out our Puerto Montt's climate page.
Puerto Montt Temperature in December
Min Temperature
10°C (50°F)
Max Temperature
19°C (66°F)
Chance of Rain
9%
Precipitation
122 mm (4.8 in)
Rainy days
3 days
Humidity
79%
Windspeed
4 m/s (8 knots)
Sunshine
198 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Puerto Montt typically stay consistent throughout December, with daily highs averaging around 19°C (66°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 10°C (50°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Puerto Montt in December
Browse day-by-day weather records for Puerto Montt spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Puerto Montt historical weather extremes in December
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Puerto Montt.
- The warmest day in December was on December 12, 1996, with a maximum of 30°C (86°F).
- The coldest December day was on December 12, 2010, with a maximum of 10°C (50°F).
- Puerto Montt registered its coldest December night on December 3, 2010, with temperatures dropping to 1°C (34°F).
Best Places in Chile in December
Find out more about the weather in Chile and which places have the best travel conditions in this month. See all of Chile in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Puerto Montt in December
Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Puerto Montt in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Chile, check out our Puerto Montt's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Puerto Montt climate overview or explore weather in Chile.
