Chillán weather in January
In January, Chillán has daytime highs averaging 28 °C, nights around 13 °C, with 1.2 wet days. Figures are 1991–2020 climate normals.
- 27.9°C Average high
- 13.4°C Average low
- 1.2days Wet days
- 9mm Rainfall
- 14h Daylight
Daily temperatures through January
How January develops
Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.
| Days | Avg high | Avg low | Chance of rain |
|---|---|---|---|
| 1–10 January | 27.2 °C | 13.0 °C | 6 % |
| 11–20 January | 28.3 °C | 13.5 °C | 3 % |
| 21–31 January | 28.0 °C | 13.6 °C | 3 % |
What to expect
| Measure | Typical January | Share of the month |
|---|---|---|
| Days above 25 °C | 26 of 31 | 84 % |
| Days above 30 °C | 6.3 of 31 | 20 % |
| Days below 0 °C | 0 of 31 | 0 % |
| Days with more than 1 mm rain | 1.2 of 31 | 4 % |
Conditions in January
| Measure | Average |
|---|---|
| Mean temperature | 20 °C |
| Record high (1991–2020) | 41 °C |
| Record low (1991–2020) | 6.6 °C |
| Relative humidity | 57 % |
| Wind speed | 19 km/h |
| Cloud cover | 16 % |
Where Chillán ranks in January
| Ranking | Position | Value |
|---|---|---|
| Places with the best weather in South America in January | 31stof 50 | 86/100 |
| The driest places in South America in January | 32ndof 50 | 9.5 mm |
January compared with the months around it
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 27.9 °C | 9 mm | 16 % |
| February | 27.3 °C | 24 mm | 16 % |
| March | 24.8 °C | 23 mm | 24 % |
| November | 22.4 °C | 30 mm | 34 % |
| December | 25.6 °C | 22 mm | 24 % |
See all twelve months for Chillán
- January is the warmest month in Chillán.
- It is the 1st driest month of the year.
- It ranks 1st for least cloud cover.
- Days last about 14 hours from sunrise to sunset.
- It rains on 1.2 of 31 days — 4 % of the month.
- Nights are about 14 °C cooler than the middle of the day.
- The hottest January day on record since 1991 reached 41 °C, 13 °C above the usual daytime high.
Nearby destinations in January
| Destination | Avg high | Wet days | Sea |
|---|---|---|---|
| Chillán | 28 °C | 1.2 | – |
| Concepción | 24 °C | 1 | 14 |
| Talcahuano | 22 °C | 1 | 15 |
| Talca | 30 °C | 1 | – |
| Temuco | 24 °C | 4 | – |
QuestionsJanuary in Chillán, answered
How warm is Chillán in January?
Daily highs average 28 °C and nights fall to about 13 °C, a spread of 14 °C between afternoon and dawn. That makes January the 1st warmest month of the year here.
Does it rain much in Chillán in January?
January averages 9 mm of rain, spread over about 1 of the 31 days — 4 % of the month. Cloud cover averages 16 % of the sky.
How long are the days in January?
Chillán averages 14 hours between sunrise and sunset in January. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.