Climate averages 1991–2020
Chillán weather
in August.
A cool, wet month: the 10th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a cool month in Chillán: daytime highs average 14.0°C and nights cool to about 4.2°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 168 mm of rain on roughly 11 days, which makes August a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 44 min on an average August day.
The nearest other city in this atlas is Concepción (88 km away). In August its highs average 13.6°C, about as warm as Chillán, with 122 mm of rain.
Among the 40 cities listed in Chile, Chillán ranks 27th of 40 for the warmest August highs and 33rd of 40 for the driest August (rainfall, lowest first). The mean August high of those 40 cities is 15.5°C; Chillán is 1.5°C cooler than that mean.
From August to September, average highs rise by 2.3°C to 16.3°C, and monthly rainfall falls from 168 mm to 96 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
Chillán climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.6°C13.3°C | 13.3°C | 9.5 | 1.3 | 14.314 h |
| February | 27.1°C13.1°C | 13.1°C | 24 | 1.8 | 13.513 h |
| March | 24.7°C11.4°C | 11.4°C | 23 | 2.4 | 12.312 h |
| April | 19.8°C8.6°C | 8.6°C | 75 | 5.2 | 11.211 h |
| May | 15.8°C6.5°C | 6.5°C | 193 | 9.7 | 10.210 h |
| June | 13.1°C5.0°C | 5.0°C | 267 | 13.4 | 9.710 h |
| July | 12.7°C3.5°C | 3.5°C | 203 | 11.4 | 9.910 h |
| August, selected | 14.0°C4.2°C | 4.2°C | 168 | 11.4 | 10.711 h |
| September | 16.3°C5.4°C | 5.4°C | 96 | 7.3 | 11.812 h |
| October | 18.7°C7.1°C | 7.1°C | 63 | 6.4 | 13.013 h |
| November | 22.2°C9.3°C | 9.3°C | 28 | 3.3 | 14.014 h |
| December | 25.4°C11.6°C | 11.6°C | 22 | 2.4 | 14.615 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
- Concepción in AugustChile · 88 kmHigh 13.6°C · Low 6.0°C · 122 mm rain
- Villa Mercedes, Chile in AugustChile · 89 kmHigh 12.4°C · Low 3.4°C · 241 mm rain
- Chiguayante in AugustChile · 90 kmHigh 13.8°C · Low 5.9°C · 155 mm rain
- Talcahuano in AugustChile · 91 kmHigh 13.1°C · Low 6.8°C · 122 mm rain
- San Pedro de la Paz in AugustChile · 93 kmHigh 13.2°C · Low 6.6°C · 122 mm rain
- Los Ángeles in AugustChile · 99 kmHigh 13.1°C · Low 4.0°C · 169 mm rain
- Coronel in AugustChile · 104 kmHigh 13.6°C · Low 6.3°C · 163 mm rain
- Talca in AugustChile · 138 kmHigh 15.1°C · Low 4.7°C · 111 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 Chillán) is explained once on the Chillán year overview and on the Sources, method and limits page.