September Weather in Santiago de Cao, Peru

Last updated: August 27, 2025

In September, the average temperature in Santiago de Cao, Peru is a comfortable 16°C (61°F), with a minimum of 13°C (56°F) and a maximum of 19°C (67°F). Expect light precipitation of just 8 mm (0.3 in) over the course of 0 days, and enjoy the pleasant average humidity of 62%.

September Temperature in Santiago de Cao

In September in Santiago de Cao, the average temperature is 16°C (61°F). The maximum can reach 19°C (67°F), while the minimum can drop to as low as 13°C (56°F). It's a pleasant time to visit, so be sure to pack accordingly for mild weather!

September Weather in Santiago de Cao: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santiago de Cao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago de Cao, September typically has an average temperature of 16°C (61°F), with highs reaching up to 19°C (67°F) and lows dropping to around 13°C (56°F).

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

September Precipitation in Santiago de Cao

In Santiago de Cao in September, the precipitation amount is 8 mm (0.3 in) during a span of 0 days.

September Precipitation Trends in Santiago de Cao

The chart displays monthly precipitation patterns in Santiago de Cao, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Santiago de Cao, September typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 0 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Santiago de Cao

In Santiago de Cao in September, humidity is 62%. With an average temperature of 16°C (61°F), this humidity feels like a gentle blanket, making traveling comfortable yet occasionally sticky, prompting the need for light, breathable clothing to fully enjoy the sights.

September Average Humidity in Santiago de Cao

This chart illustrates the average monthly humidity levels in Santiago de Cao, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Santiago de Cao is approximately 62%, offering insight into how humid the weather typically is during this month.

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

September UV Index in Santiago de Cao

In Santiago de Cao in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Santiago de Cao.

Maximum UV Index Levels in Santiago de Cao for September

The chart shows the monthly maximum UV Index (UVI) for Santiago de Cao in September, 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 September, the maximum UV index in Santiago de Cao typically reaches 13, which falls under the extreme exposure category.

Data source: Santiago de Cao September 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 September Weather in Santiago de Cao Compares to Other Months

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

This table compares monthly weather conditions in Santiago de Cao, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (71°F)	9 mm (0.4 inches)	91%	extreme
February Weather	23°C (73°F)	9 mm (0.4 inches)	89%	extreme
March Weather	23°C (73°F)	17 mm (0.7 inches)	89%	extreme
April Weather	20°C (69°F)	8 mm (0.3 inches)	88%	extreme
May Weather	19°C (66°F)	4 mm (0.1 inches)	84%	extreme
June Weather	18°C (64°F)	6 mm (0.2 inches)	73%	extreme
July Weather	17°C (63°F)	8 mm (0.3 inches)	55%	extreme
August Weather	16°C (62°F)	9 mm (0.4 inches)	53%	extreme
September Weather	16°C (61°F)	8 mm (0.3 inches)	62%	extreme
October Weather	17°C (62°F)	6 mm (0.2 inches)	82%	extreme
November Weather	18°C (64°F)	5 mm (0.2 inches)	89%	extreme
December Weather	19°C (67°F)	11 mm (0.4 inches)	91%	extreme