August Weather in Santiago, Mexico

Last updated: August 27, 2025

In August, the average temperature in Santiago, Mexico is a pleasant 19°C (67°F), with lows dipping to 11°C (52°F) and highs reaching up to 30°C (86°F). Expect about 56 mm (2.2 in) of precipitation spread over 7 days, contributing to an average humidity level of 64%. Perfect for those seeking mild weather with occasional showers!

August Temperature in Santiago

In August in Santiago, the average temperature is 19°C (67°F). Maximums can reach 30°C (86°F), and minimums can drop as low as 11°C (52°F). This mild climate makes Santiago an ideal destination for travelers seeking a pleasant getaway.

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

The chart illustrates August 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, August typically has an average temperature of 19°C (67°F), with highs reaching up to 30°C (86°F) and lows dropping to around 11°C (52°F).

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

August Precipitation in Santiago

In Santiago in August, the total precipitation amount is 56 mm (2.2 in) over a period of 7 days.

August Precipitation Trends in Santiago

The chart displays monthly precipitation patterns in Santiago, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Santiago, August typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 7 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Santiago

In Santiago in August, humidity is 64%. With an average temperature of 19°C (67°F), this humidity feels like a warm, sultry embrace, perfect for leisurely strolls and exploring local sights, though travelers should stay hydrated and take breaks in shaded areas to fully enjoy the vibrant atmosphere.

August Average Humidity in Santiago

This chart illustrates the average monthly humidity levels in Santiago, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Santiago is approximately 64%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Santiago

In Santiago in August, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Santiago, you can check here.

Maximum UV Index Levels in Santiago for August

The chart shows the monthly maximum UV Index (UVI) for Santiago in August, 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 August, the maximum UV index in Santiago typically reaches 14, which falls under the extreme exposure category.

Data source: Santiago August 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 August 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 August’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 August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	12 mm (0.5 inches)	75%	very high
February Weather	15°C (59°F)	10 mm (0.4 inches)	69%	extreme
March Weather	17°C (63°F)	13 mm (0.5 inches)	65%	extreme
April Weather	19°C (67°F)	10 mm (0.4 inches)	64%	extreme
May Weather	21°C (70°F)	41 mm (1.6 inches)	75%	extreme
June Weather	20°C (68°F)	99 mm (3.9 inches)	78%	extreme
July Weather	19°C (67°F)	89 mm (3.5 inches)	67%	extreme
August Weather	19°C (67°F)	56 mm (2.2 inches)	64%	extreme
September Weather	18°C (65°F)	100 mm (3.9 inches)	81%	extreme
October Weather	17°C (62°F)	50 mm (2.0 inches)	85%	extreme
November Weather	14°C (58°F)	14 mm (0.6 inches)	87%	very high
December Weather	12°C (55°F)	10 mm (0.4 inches)	87%	very high