September Weather in Chacabuco, Argentina

Last updated: August 22, 2025

In September, the average temperature in Chacabuco, Argentina is a pleasant 14°C (57°F), with lows dipping to a chilly -2°C (29°F) and highs soaring up to a warm 31°C (89°F). Expect light rain with an average precipitation of 83 mm (3.3 in) spread over 6 days of the month. Additionally, the average humidity sits at a comfortable 66%, making it a great time to explore!

September Temperature in Chacabuco

In September in Chacabuco, the average temperature is 14°C (57°F). Maximum temperatures can reach 31°C (89°F), while minimums can drop as low as -2°C (29°F). Travelers should be prepared for a wide range of weather conditions during this time.

September Weather in Chacabuco: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Chacabuco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chacabuco, September typically has an average temperature of 14°C (57°F), with highs reaching up to 31°C (89°F) and lows dropping to around -2°C (29°F).

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

September Precipitation in Chacabuco

In Chacabuco in September, the precipitation amount is 83 mm (3.3 in) over the course of 6 days.

September Precipitation Trends in Chacabuco

The chart displays monthly precipitation patterns in Chacabuco, 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 Chacabuco, September typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 6 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 Chacabuco

In Chacabuco in September humidity is 66%. With an average temperature of 14°C (57°F), this humidity feels like a warm, enveloping hug, making it pleasant for strolling through the streets, though a light jacket might be needed to stay comfortable while exploring.

September Average Humidity in Chacabuco

This chart illustrates the average monthly humidity levels in Chacabuco, 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 Chacabuco is approximately 66%, 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 Chacabuco

In Chacabuco in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Chacabuco.

Maximum UV Index Levels in Chacabuco for September

The chart shows the monthly maximum UV Index (UVI) for Chacabuco 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 Chacabuco typically reaches 8, which falls under the very high exposure category.

Data source: Chacabuco 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 Chacabuco Compares to Other Months

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

This table compares monthly weather conditions in Chacabuco, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	82 mm (3.2 inches)	46%	extreme
February Weather	22°C (72°F)	65 mm (2.6 inches)	54%	extreme
March Weather	20°C (69°F)	79 mm (3.1 inches)	64%	extreme
April Weather	18°C (64°F)	117 mm (4.6 inches)	76%	high
May Weather	13°C (56°F)	82 mm (3.2 inches)	81%	moderate
June Weather	11°C (51°F)	35 mm (1.4 inches)	76%	moderate
July Weather	10°C (49°F)	31 mm (1.2 inches)	65%	moderate
August Weather	11°C (53°F)	37 mm (1.5 inches)	59%	high
September Weather	14°C (57°F)	83 mm (3.3 inches)	66%	very high
October Weather	17°C (62°F)	88 mm (3.5 inches)	57%	very high
November Weather	20°C (69°F)	93 mm (3.7 inches)	54%	extreme
December Weather	23°C (73°F)	86 mm (3.4 inches)	48%	extreme