Climate averages 1991–2020
Osorno weather
in August.
A cool, very wet month: the 10th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a cool month in Osorno: daytime highs average 11.2°C and nights cool to about 3.8°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 213 mm of rain on roughly 19 days, which makes August a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 31 min on an average August day.
The nearest other city in this atlas is Valdivia (85 km away). In August its highs average 11.5°C, about as warm as Osorno, with 276 mm of rain.
Among the 40 cities listed in Chile, Osorno ranks 38th of 40 for the warmest August highs and 37th of 40 for the driest August (rainfall, lowest first). The mean August high of those 40 cities is 15.5°C; Osorno is 4.3°C cooler than that mean.
From August to September, average highs rise by 1.6°C to 12.9°C, and monthly rainfall falls from 213 mm to 129 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Osorno climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 21.5°C11.0°C | 11.0°C | 39 | 6.2 | 14.715 h |
| February | 22.0°C11.1°C | 11.1°C | 42 | 5.3 | 13.714 h |
| March | 19.6°C9.7°C | 9.7°C | 65 | 8.5 | 12.412 h |
| April | 15.9°C7.4°C | 7.4°C | 114 | 11.6 | 11.011 h |
| May | 13.2°C6.1°C | 6.1°C | 194 | 15.4 | 9.910 h |
| June | 10.7°C4.5°C | 4.5°C | 251 | 18.8 | 9.39 h |
| July | 10.3°C3.4°C | 3.4°C | 231 | 17.9 | 9.610 h |
| August, selected | 11.2°C3.8°C | 3.8°C | 213 | 18.6 | 10.511 h |
| September | 12.9°C4.5°C | 4.5°C | 129 | 14.0 | 11.812 h |
| October | 14.7°C5.9°C | 5.9°C | 114 | 13.6 | 13.113 h |
| November | 16.7°C7.7°C | 7.7°C | 77 | 10.6 | 14.414 h |
| December | 19.2°C9.6°C | 9.6°C | 67 | 8.2 | 15.015 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Valdivia in AugustChile · 85 kmHigh 11.5°C · Low 5.4°C · 276 mm rain
- Puerto Montt in AugustChile · 101 kmHigh 10.4°C · Low 4.9°C · 277 mm rain
- San Carlos de Bariloche in AugustArgentina · 166 kmHigh 4.9°C · Low -0.1°C · 131 mm rain
- Padre Las Casas in AugustChile · 207 kmHigh 12.1°C · Low 3.7°C · 196 mm rain
- Temuco in AugustChile · 209 kmHigh 12.4°C · Low 4.0°C · 196 mm rain
- Los Ángeles in AugustChile · 352 kmHigh 13.1°C · Low 4.0°C · 169 mm rain
- Villa Mercedes, Chile in AugustChile · 366 kmHigh 12.4°C · Low 3.4°C · 241 mm rain
- Coronel in AugustChile · 394 kmHigh 13.6°C · Low 6.3°C · 163 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Osorno) is explained once on the Osorno year overview and on the Sources, method and limits page.