Santiago weather in October
In October, Santiago has an average high of 26 °C79 °F and an average low of 11 °C52 °F, with about 12 mm0.5 in of precipitation. It is the 7th warmest month of the year and ranks 6th for precipitation.
How October compares with other months
Compared with September, October is 2.7 °C4.9 °F warmer on average. Compared with November, October is 3.4 °C6.2 °F cooler on average. Daylight lasts about 13.0 hours around the middle of the month. Average relative humidity is 42% and the average cloud amount 64%.
Is October a good time to visit Santiago?
Yes — October is one of the most comfortable months to visit Santiago by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in October
For Santiago in October, pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
October in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Santiago | 2679 | 1152 | 120.5 |
| Colina | 2679 | 1254 | 100.4 |
| Rancagua | 2578 | 1152 | 160.6 |
| Viña del Mar | 2475 | 1151 | 110.4 |
| Valparaíso | 1559 | 1253 | 120.5 |
| Curicó | 2374 | 948 | 210.8 |
| Mendoza | 2679 | 1051 | 150.6 |
| Talca | 2170 | 744 | 321.2 |
| San Rafael | 2577 | 949 | 351.4 |
Nearby places that are more than 1 °C1.8 °F cooler: Viña del Mar, Valparaíso, Curicó and Talca.
Other months in Santiago
- January34 °C92 °F / 18 °C65 °F
- February32 °C90 °F / 18 °C64 °F
- March31 °C87 °F / 16 °C61 °F
- April27 °C80 °F / 13 °C56 °F
- May23 °C73 °F / 10 °C50 °F
- June19 °C66 °F / 7 °C45 °F
- July18 °C65 °F / 6 °C43 °F
- August20 °C68 °F / 7 °C45 °F
- September23 °C73 °F / 9 °C48 °F
- October26 °C79 °F / 11 °C52 °F
- November30 °C86 °F / 14 °C57 °F
- December32 °C90 °F / 16 °C62 °F
Frequently asked questions
How warm is Santiago in October?
In October the average high in Santiago is 26 °C (79 °F) and the average low is 11 °C (52 °F).
Does it rain a lot in Santiago in October?
On average about 12 mm (0.5 in) of precipitation falls in October; it ranks 6th of the 12 months.
Is October the warmest month in Santiago?
No. The warmest month in Santiago is January, with an average high of 34 °C (92 °F). The coldest month is July, with an average low of 6 °C (43 °F).
How long is the day in Santiago in October?
In the middle of October the day in Santiago lasts about 13.0 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Santiago in October?
The average relative humidity in October is about 42%. This is a long-term average for the whole day.
How cloudy is Santiago in October?
On average about 64% of the sky is covered by cloud in October. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 1,154 m, while Santiago lies at about 556 m. Temperatures on this page were therefore adjusted by +3.9 °C7 °F using the standard lapse rate of 6.5 °C per 1,000 m.