October Weather in Santiago, Mexico

Last updated: August 27, 2025

In October, the average temperature in Santiago, Mexico is a pleasant 23°C (74°F), with a minimum of 18°C (64°F) and a maximum reaching 30°C (87°F). You can expect a total precipitation of 336 mm (13.2 in) over the month, contributing to an average humidity of 75%. So, pack your umbrella and enjoy the warmth!

October Temperature in Santiago

In October in Santiago, the average temperature is 23°C (74°F), with maximums reaching 30°C (87°F) and minimums dipping to as low as 18°C (64°F). This pleasant climate makes Santiago an ideal destination for travelers seeking a comfortable and enjoyable getaway.

October Weather in Santiago: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Santiago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago, October typically has an average temperature of 23°C (74°F), with highs reaching up to 30°C (87°F) and lows dropping to around 18°C (64°F).

Data source: Temperature data for Santiago generated using information from the Copernicus Climate Change Service.

October Precipitation in Santiago

In Santiago in October, the precipitation amount is 336 mm (13.2 in) over a span of 30 days.

October Precipitation Trends in Santiago

The chart displays monthly precipitation patterns in Santiago, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Santiago, October typically receives around 336 mm (13.2 inches) of precipitation spread over approximately 30 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Santiago

In Santiago in October, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.

October Average Humidity in Santiago

This chart illustrates the average monthly humidity levels in Santiago, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Santiago is approximately 75%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Santiago

In Santiago in October, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Santiago.

Maximum UV Index Levels in Santiago for October

The chart shows the monthly maximum UV Index (UVI) for Santiago in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Santiago typically reaches 12, which falls under the extreme exposure category.

Data source: Santiago October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How October Weather in Santiago Compares to Other Months

Weather in Santiago varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Santiago, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Santiago, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (70°F)	12 mm (0.5 inches)	66%	very high
February Weather	22°C (71°F)	8 mm (0.3 inches)	64%	extreme
March Weather	23°C (73°F)	9 mm (0.3 inches)	63%	extreme
April Weather	23°C (74°F)	6 mm (0.3 inches)	69%	extreme
May Weather	24°C (76°F)	95 mm (3.7 inches)	73%	extreme
June Weather	23°C (74°F)	391 mm (15.4 inches)	76%	extreme
July Weather	24°C (75°F)	302 mm (11.9 inches)	78%	extreme
August Weather	23°C (75°F)	426 mm (16.8 inches)	79%	extreme
September Weather	23°C (74°F)	453 mm (17.9 inches)	78%	extreme
October Weather	23°C (74°F)	336 mm (13.2 inches)	75%	extreme
November Weather	22°C (73°F)	92 mm (3.6 inches)	72%	very high
December Weather	21°C (71°F)	23 mm (0.9 inches)	70%	very high