Osorno climate
Osorno (Chile) has a temperate oceanic climate (Köppen Cfb). The average temperature over the year is 11 °C52 °F, and about 1,131 mm45 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Osorno climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 2374 | 1049 | 1762 | 451.8 | 0 |
| Feb | 2476 | 1050 | 1763 | 411.6 | 0 |
| Mar | 2170 | 847 | 1559 | 622.4 | 0 |
| Apr | 1762 | 744 | 1253 | 873.4 | 0 |
| May | 1356 | 542 | 949 | 1365.4 | 0 |
| Jun | 1151 | 440 | 745 | 1656.5 | 4 |
| Jul | 1050 | 338 | 744 | 1596.3 | 6 |
| Aug | 1152 | 439 | 745 | 1465.7 | 4 |
| Sep | 1355 | 440 | 948 | 833.3 | 2 |
| Oct | 1559 | 542 | 1050 | 843.3 | 0 |
| Nov | 1763 | 745 | 1254 | 682.7 | 0 |
| Dec | 2169 | 948 | 1558 | 552.1 | 0 |
| Year | 2476 | 338 | 1152 | 1,13145 | 16 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 73% | 46% | 7.2 | 14:46 |
| Feb | 71% | 47% | 6.2 | 13:43 |
| Mar | 76% | 54% | 4.6 | 12:28 |
| Apr | 84% | 64% | 2.9 | 11:04 |
| May | 91% | 73% | 1.8 | 9:54 |
| Jun | 94% | 77% | 1.3 | 9:17 |
| Jul | 93% | 75% | 1.6 | 9:32 |
| Aug | 91% | 75% | 2.3 | 10:32 |
| Sep | 88% | 68% | 3.6 | 11:54 |
| Oct | 86% | 69% | 4.8 | 13:16 |
| Nov | 83% | 64% | 6.0 | 14:28 |
| Dec | 78% | 55% | 7.0 | 15:04 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Osorno is like
The warmest month is February, with an average high of 24 °C76 °F and a low of 10 °C50 °F. The coldest is July, when highs average 10 °C50 °F and lows 3 °C38 °F. There is a clear seasonal cycle, with 10.4 °C18.8 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,131 mm45 in of precipitation per year. The wettest three-month stretch is June–August, which brings 42% of the annual total. The wettest month is June (165 mm6.5 in), the driest is February (41 mm1.6 in).
Relative humidity ranges from 71% in February to 94% in June. The clearest skies (lowest average cloud amount, 46%) are typical of January. Average wind speed near the ground ranges from 0 km/h (0 mph) in January to 0 km/h (0 mph) in May. Daylight lasts from about 9.3 hours in June to 15.1 hours in December.
Best time to visit Osorno
Based on these averages, the most comfortable months for sightseeing and outdoor activities are December–March: average highs of 21 °C69 °F to 24 °C76 °F with 41 mm1.6 in to 62 mm2.4 in of precipitation per month.
The most challenging month is July, which is cold, with average highs of 10 °C50 °F and very wet (159 mm6.3 in).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Osorno
- Summer (December–February) — highs 2169 to 24 °C76 °F, lows 948 to 10 °C50 °F, about 47 mm1.8 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Autumn (March–May) — highs 1356 to 21 °C70 °F, lows 542 to 8 °C47 °F, about 95 mm3.7 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Winter (June–August) — highs 1050 to 11 °C52 °F, lows 338 to 4 °C40 °F, about 157 mm6.2 in of precipitation a month. Pack a warm coat, layers and closed shoes and an umbrella or light rain jacket.
- Spring (September–November) — highs 1355 to 17 °C63 °F, lows 440 to 7 °C45 °F, about 78 mm3.1 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
How Osorno compares
Compared with Puerto Montt, about 101 km to the south, Osorno is on average 0.4 °C0.7 °F warmer and receives 15% less precipitation (1,131 mm45 in vs 1,337 mm53 in). The difference is largest in February (1.8 °C3.2 °F warmer).
Of the 25 places in Chile covered by World Climates, Osorno is the 23rd warmest by annual mean temperature and the 2nd wettest by annual precipitation. See all of them on the Chile climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Brest (France, Cfb), Exeter (United Kingdom, Cfb) and Plymouth (United Kingdom, Cfb).
Nearby places
- Valdivia 85 km · 12 °C53 °F · 1,111 mm44 in
- Puerto Montt 101 km · 11 °C52 °F · 1,337 mm53 in
- Temuco 209 km · 12 °C54 °F · 1,007 mm40 in
- Los Ángeles 352 km · 13 °C56 °F · 771 mm30 in
- Villa Mercedes 366 km · 14 °C57 °F · 724 mm29 in
- Coronel 394 km · 14 °C57 °F · 849 mm33 in
- Concepción 417 km · 14 °C57 °F · 849 mm33 in
- Talcahuano 428 km · 13 °C56 °F · 912 mm36 in
Frequently asked questions
What is the warmest month in Osorno?
February is the warmest month in Osorno, with an average high of 24 °C (76 °F) and an average low of 10 °C (50 °F).
What is the coldest month in Osorno?
July is the coldest month, with an average high of 10 °C (50 °F) and an average low of 3 °C (38 °F).
When does it rain the most in Osorno?
June is the wettest month with about 165 mm (6.5 in) of precipitation; February is the driest with about 41 mm (1.6 in).
What is the best time to visit Osorno?
Judging by long-term averages, the most comfortable months are December–March.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 152 m, while Osorno lies at about 37 m. Temperatures on this page were therefore adjusted by +0.7 °C1.3 °F using the standard lapse rate of 6.5 °C per 1,000 m.