Osorno Weather in August
August in Osorno brings moderate temperatures around 13°C (55°F) during the day, dropping to 4°C (39°F) at night, and as part of the rainy season, heavy rainfall is common.
Rainfall in Osorno in August
Osorno is in the rainy season in August, with rain on around 11 days and an average of 206 mm (8.1 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Osorno in August
In August, Osorno gets moderate temperatures, with highs of 13°C (55°F). Nights cool to around 4°C (39°F). Experience the winter season in August. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 4°C (39°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.August in Osorno has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
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 Osorno's climate page.
Osorno Temperature in August
Min Temperature
4°C (39°F)
Max Temperature
13°C (55°F)
Chance of Rain
35%
Precipitation
206 mm (8.1 in)
Rainy days
11 days
Humidity
81%
Historical weather for Osorno in August
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 August
Based on 25 years of weather observations in Osorno between 2000 and 2025, these are the recorded extremes.
- On August 30, 2025, temperatures climbed to 19°C (66°F), marking the warmest August day on record.
- On August 9, 2003, Osorno saw its coldest August day with temperatures maxing out at 2°C (36°F).
- Osorno registered its coldest August night on August 1, 2006, with temperatures dropping to -4°C (25°F).
- The wettest day in August Osorno was on August 21, 2005 with 58 mm (2.3 in) of precipitation.
Best Places in Chile in August
Find out more about the weather in Chile and which places have the best travel conditions in this month. See all of Chile in August →
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What to Wear in Osorno in August
The weather can be unpredictable in August, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Also bring a poncho, it will rain a lot! Waterproof everything you can.What To Do in Osorno in August
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 Osorno's climate page.
See the full Osorno climate overview or explore weather in Chile.
