Climate averages 1991–2020
Santiago weather
in January.
A hot, very dry month: the warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Santiago: daytime highs average 28.0°C and nights cool to about 16.6°C. By daytime temperature it is the warmest month of the year.
Expect about 2.7 mm of rain on fewer than one day, which makes January a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 05 min on an average January day.
The nearest other city in this atlas is Peñalolén (11 km away). In January its highs average 26.8°C, 1.2°C cooler than Santiago, with 15 mm of rain.
Among the 40 cities listed in Chile, Santiago ranks joint 12th of 40 for the warmest January highs and joint 12th of 40 for the driest January (rainfall, lowest first). The mean January high of those 40 cities is 25.5°C; Santiago is 2.5°C warmer than that mean.
From January to February, average highs fall by 0.5°C to 27.5°C, and monthly rainfall rises from 2.7 mm to 4.5 mm.
The annual picture
January 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
Santiago climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 28.0°C16.6°C | 16.6°C | 2.7 | 0.7 | 14.114 h |
| February | 27.5°C16.2°C | 16.2°C | 4.5 | 0.9 | 13.313 h |
| March | 26.1°C14.7°C | 14.7°C | 8.6 | 1.2 | 12.312 h |
| April | 22.2°C10.1°C | 10.1°C | 28 | 3.3 | 11.311 h |
| May | 18.4°C6.1°C | 6.1°C | 62 | 6.0 | 10.410 h |
| June | 14.7°C2.8°C | 2.8°C | 109 | 7.3 | 10.010 h |
| July | 13.8°C1.9°C | 1.9°C | 86 | 7.1 | 10.210 h |
| August | 15.4°C3.0°C | 3.0°C | 81 | 7.7 | 10.911 h |
| September | 17.6°C5.0°C | 5.0°C | 55 | 7.8 | 11.912 h |
| October | 20.1°C7.5°C | 7.5°C | 39 | 6.1 | 12.913 h |
| November | 23.4°C10.6°C | 10.6°C | 16 | 2.6 | 13.814 h |
| December | 26.2°C14.1°C | 14.1°C | 6.3 | 1.0 | 14.314 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
January in nearby cities
- Peñalolén in JanuaryChile · 11 kmHigh 26.8°C · Low 15.9°C · 15 mm rain
- Quilicura in JanuaryChile · 12 kmHigh 28.5°C · Low 16.8°C · 7.7 mm rain
- Maipú in JanuaryChile · 13 kmHigh 29.0°C · Low 16.0°C · 2.7 mm rain
- San Bernardo in JanuaryChile · 16 kmHigh 28.9°C · Low 16.1°C · 2.7 mm rain
- Puente Alto in JanuaryChile · 18 kmHigh 27.7°C · Low 15.8°C · 15 mm rain
- Peñaflor in JanuaryChile · 27 kmHigh 29.6°C · Low 15.7°C · 2.6 mm rain
- Colina in JanuaryChile · 28 kmHigh 29.7°C · Low 18.3°C · 7.7 mm rain
- Lampa in JanuaryChile · 28 kmHigh 30.3°C · Low 17.1°C · 3.7 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 Santiago) is explained once on the Santiago year overview and on the Sources, method and limits page.
Maipú and San Bernardo lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.