September Weather in Belen, Argentina

Last updated: August 22, 2025

In Belen, Argentina, the average temperature in September is a mild 16°C (61°F), with temperatures ranging from a chilly minimum of 1°C (33°F) to a warm maximum of 34°C (93°F). Expect around 17 mm (0.7 in) of precipitation over 3 days, contributing to an average humidity of 58%.

September Temperature in Belen

In September in Belen, the average temperature is 16°C (61°F). Maximums can reach 34°C (93°F) and minimums can be as low as 1°C (33°F). This makes it an ideal month for travelers to enjoy a variety of outdoor activities while being prepared for both warm afternoons and cooler evenings.

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

The chart illustrates September temperature patterns in Belen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Belen, September typically has an average temperature of 16°C (61°F), with highs reaching up to 34°C (93°F) and lows dropping to around 1°C (33°F).

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

September Precipitation in Belen

In Belen in September, the precipitation amount is 17 mm (0.7 in) over the course of 3 days.

September Precipitation Trends in Belen

The chart displays monthly precipitation patterns in Belen, 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 Belen, September typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 3 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 Belen

In Belen in September humidity is 58%. With an average temperature of 16°C (61°F), this humidity feels like a soft blanket enveloping you, making it ideal for leisurely sightseeing but slightly muggy if you're engaging in more strenuous activities.

September Average Humidity in Belen

This chart illustrates the average monthly humidity levels in Belen, 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 Belen is approximately 58%, 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 Belen

In Belen in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Belen.

Maximum UV Index Levels in Belen for September

The chart shows the monthly maximum UV Index (UVI) for Belen 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 Belen typically reaches 11, which falls under the extreme exposure category.

Data source: Belen 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 Belen Compares to Other Months

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

This table compares monthly weather conditions in Belen, 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)	61 mm (2.4 inches)	79%	extreme
February Weather	22°C (72°F)	62 mm (2.4 inches)	81%	extreme
March Weather	20°C (69°F)	65 mm (2.5 inches)	83%	extreme
April Weather	18°C (64°F)	39 mm (1.5 inches)	85%	extreme
May Weather	14°C (58°F)	26 mm (1.0 inches)	75%	very high
June Weather	11°C (53°F)	15 mm (0.6 inches)	62%	high
July Weather	11°C (53°F)	8 mm (0.3 inches)	53%	high
August Weather	13°C (56°F)	6 mm (0.2 inches)	44%	very high
September Weather	16°C (61°F)	17 mm (0.7 inches)	58%	extreme
October Weather	19°C (67°F)	20 mm (0.8 inches)	54%	extreme
November Weather	22°C (71°F)	33 mm (1.3 inches)	66%	extreme
December Weather	23°C (73°F)	53 mm (2.1 inches)	74%	extreme