September Weather in Cerro Libre, Peru

Last updated: August 27, 2025

In Cerro Libre, Peru, the average temperature in September is a pleasant 17°C (63°F). Expect lows of 13°C (56°F) and highs reaching 22°C (72°F). With an average humidity of 53%, this month offers a comfortable climate, complemented by a mere 2 mm (0.1 in) of precipitation over 0 days.

September Temperature in Cerro Libre

In September in Cerro Libre, the average temperature is 17°C (63°F). Maximum temperatures can reach 22°C (72°F), while the minimum can drop to as low as 13°C (56°F). It's a comfortable time for traveling, with mild weather perfect for exploring the sights.

September Weather in Cerro Libre: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cerro Libre, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cerro Libre, September typically has an average temperature of 17°C (63°F), with highs reaching up to 22°C (72°F) and lows dropping to around 13°C (56°F).

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

September Precipitation in Cerro Libre

In Cerro Libre in September, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

September Precipitation Trends in Cerro Libre

The chart displays monthly precipitation patterns in Cerro Libre, 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 Cerro Libre, September typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Cerro Libre

In Cerro Libre in September humidity is 53%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing embrace, making it comfortable for sightseeing and outdoor adventures, yet a light jacket may be a welcome companion as you explore.

September Average Humidity in Cerro Libre

This chart illustrates the average monthly humidity levels in Cerro Libre, 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 Cerro Libre is approximately 53%, 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 Cerro Libre

In Cerro Libre in September, 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 Cerro Libre, you can check here.

Maximum UV Index Levels in Cerro Libre for September

The chart shows the monthly maximum UV Index (UVI) for Cerro Libre 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 Cerro Libre typically reaches 14, which falls under the extreme exposure category.

Data source: Cerro Libre 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 Cerro Libre Compares to Other Months

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

This table compares monthly weather conditions in Cerro Libre, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (68°F)	59 mm (2.3 inches)	89%	extreme
February Weather	20°C (69°F)	78 mm (3.1 inches)	89%	extreme
March Weather	20°C (69°F)	53 mm (2.1 inches)	90%	extreme
April Weather	20°C (67°F)	10 mm (0.4 inches)	89%	extreme
May Weather	19°C (66°F)	5 mm (0.2 inches)	83%	extreme
June Weather	18°C (64°F)	2 mm (0.1 inches)	69%	very high
July Weather	17°C (63°F)	1 mm (0.0 inches)	56%	extreme
August Weather	17°C (63°F)	1 mm (0.0 inches)	50%	extreme
September Weather	17°C (63°F)	2 mm (0.1 inches)	53%	extreme
October Weather	18°C (64°F)	6 mm (0.2 inches)	68%	extreme
November Weather	18°C (65°F)	3 mm (0.1 inches)	81%	extreme
December Weather	19°C (67°F)	11 mm (0.4 inches)	87%	extreme