Climate averages 1991–2020
Chillán weather
in May.
A mild, very wet month: the 9th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Chillán: daytime highs average 15.8°C and nights cool to about 6.5°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 193 mm of rain on roughly 10 days, which makes May a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 12 min on an average May day.
The nearest other city in this atlas is Concepción (88 km away). In May its highs average 15.6°C, about as warm as Chillán, with 135 mm of rain.
Among the 40 cities listed in Chile, Chillán ranks 27th of 40 for the warmest May highs and 36th of 40 for the driest May (rainfall, lowest first). The mean May high of those 40 cities is 17.5°C; Chillán is 1.7°C cooler than that mean.
From May to June, average highs fall by 2.7°C to 13.1°C, and monthly rainfall rises from 193 mm to 267 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Concepción in MayChile · 88 kmHigh 15.6°C · Low 8.3°C · 135 mm rain
- Villa Mercedes, Chile in MayChile · 89 kmHigh 14.4°C · Low 6.0°C · 245 mm rain
- Chiguayante in MayChile · 90 kmHigh 15.7°C · Low 8.4°C · 169 mm rain
- Talcahuano in MayChile · 91 kmHigh 15.0°C · Low 8.8°C · 135 mm rain
- San Pedro de la Paz in MayChile · 93 kmHigh 15.1°C · Low 8.7°C · 135 mm rain
- Los Ángeles in MayChile · 99 kmHigh 15.0°C · Low 6.4°C · 178 mm rain
- Coronel in MayChile · 104 kmHigh 15.5°C · Low 8.6°C · 175 mm rain
- Talca in MayChile · 138 kmHigh 17.0°C · Low 7.4°C · 136 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.