Climate averages 1991–2020
Santiago weather
in October.
A mild, fairly dry month: the 7th warmest and the 7th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Santiago: daytime highs average 20.1°C and nights cool to about 7.5°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 39 mm of rain on roughly 6 days, which makes October a fairly dry month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 54 min on an average October day.
The nearest other city in this atlas is Peñalolén (11 km away). In October its highs average 18.9°C, 1.3°C cooler than Santiago, with 62 mm of rain.
Among the 40 cities listed in Chile, Santiago ranks joint 17th of 40 for the warmest October highs and joint 17th of 40 for the driest October (rainfall, lowest first). The mean October high of those 40 cities is 19.1°C; Santiago is 1.0°C warmer than that mean.
From October to November, average highs rise by 3.3°C to 23.4°C, and monthly rainfall falls from 39 mm to 16 mm.
The annual picture
October 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 | 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, selected | 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
October in nearby cities
- Peñalolén in OctoberChile · 11 kmHigh 18.9°C · Low 7.4°C · 62 mm rain
- Quilicura in OctoberChile · 12 kmHigh 20.5°C · Low 9.0°C · 59 mm rain
- Maipú in OctoberChile · 13 kmHigh 21.0°C · Low 8.7°C · 39 mm rain
- San Bernardo in OctoberChile · 16 kmHigh 20.9°C · Low 7.5°C · 39 mm rain
- Puente Alto in OctoberChile · 18 kmHigh 19.7°C · Low 6.4°C · 62 mm rain
- Peñaflor in OctoberChile · 27 kmHigh 21.7°C · Low 8.9°C · 25 mm rain
- Colina in OctoberChile · 28 kmHigh 21.4°C · Low 10.4°C · 59 mm rain
- Lampa in OctoberChile · 28 kmHigh 22.1°C · Low 10.5°C · 28 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.