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Osorno Weather in December
December in Osorno sees daytime temperatures around 21°C (70°F) and lows of 9°C (48°F) at night. With around 71 mm (2.8 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Osorno in December
On average, there are about 3 days with rain during this month, averaging 71 mm (2.8 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 Osorno in December
The temperature in Osorno in December is excellent. Daytime highs reach 21°C (70°F), with nights dropping to 9°C (48°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.If you're a fan of comfortable temperatures and drier conditions, December is a great time to visit.
Osorno Temperature in December
Min Temperature
9°C (48°F)
Max Temperature
21°C (70°F)
Chance of Rain
9%
Precipitation
71 mm (2.8 in)
Rainy days
3 days
Humidity
65%
Osorno Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Osorno - and find the best time to visit.
Historical weather records for Osorno in December
Browse day-by-day weather records for Osorno spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Osorno historical weather extremes in December
Based on 25 years of weather observations in Osorno between 2000 and 2025, these are the recorded extremes.
- Osorno recorded its highest December temperature of 32°C (90°F) on December 2, 2008.
- The lowest daytime temperature in December was 12°C (54°F), recorded on December 14, 2003.
- Nighttime temperatures dropped to 1°C (34°F) on December 3, 2023, marking the coldest December night on record.
- The heaviest December precipitation occurred on December 23, 2012, when 42 mm (1.7 in) of precipitation fell.
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
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Osorno in December
For Osorno in December, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket.
What To Do in Osorno in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping4/10 -
Outdoor sports9/10
Osorno 3-Day Forecast
More climate data for Osorno
See the full Osorno climate overview or explore weather in Chile.
Popular in December
Where to go in December - average daytime high across popular destinations.
Santiago
26°C (79°F) San Pedro de Atacama
25°C (77°F) La Serena
23°C (73°F) Hanga Roa24°C (75°F) Viña del Mar20°C (68°F) Pucón
19°C (66°F) Valparaíso19°C (66°F) Bucket list
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