September Weather in Allen, Argentina

Last updated: August 22, 2025

In Allen, Argentina, the average temperature for September hovers around 13°C (55°F), with a range that can dip to a chilly -3°C (26°F) or soar to a warm 30°C (86°F). Expect only 17 mm (0.7 in) of precipitation over about 3 days, contributing to an average humidity of 60%. Whether you're basking in the sun or bracing against the chill, this month offers a delightful mix of weather experiences!

September Temperature in Allen

In September in Allen, the average temperature is 13°C (55°F). Maximums can reach 30°C (86°F), and minimums can be as low as -3°C (26°F). Be prepared for a wide range of temperatures while traveling during this month.

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

The chart illustrates September temperature patterns in Allen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Allen, September typically has an average temperature of 13°C (55°F), with highs reaching up to 30°C (86°F) and lows dropping to around -3°C (26°F).

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

September Precipitation in Allen

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

September Precipitation Trends in Allen

The chart displays monthly precipitation patterns in Allen, 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 Allen, 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.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Allen

In Allen in September, humidity is 60%. With an average temperature of 13°C (55°F), this humidity feels like a cool, crisp embrace that makes traveling invigorating yet refreshing, perfect for exploring without overheating.

September Average Humidity in Allen

This chart illustrates the average monthly humidity levels in Allen, 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 Allen is approximately 60%, 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 Allen

In Allen in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Allen.

Maximum UV Index Levels in Allen for September

The chart shows the monthly maximum UV Index (UVI) for Allen 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 Allen typically reaches 7, which falls under the high exposure category.

Data source: Allen 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 Allen Compares to Other Months

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

This table compares monthly weather conditions in Allen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (77°F)	8 mm (0.3 inches)	43%	extreme
February Weather	24°C (75°F)	8 mm (0.3 inches)	45%	extreme
March Weather	20°C (68°F)	15 mm (0.6 inches)	54%	very high
April Weather	16°C (61°F)	27 mm (1.1 inches)	67%	high
May Weather	11°C (51°F)	27 mm (1.1 inches)	72%	moderate
June Weather	8°C (46°F)	20 mm (0.8 inches)	73%	moderate
July Weather	7°C (44°F)	33 mm (1.3 inches)	77%	moderate
August Weather	9°C (49°F)	8 mm (0.3 inches)	73%	moderate
September Weather	13°C (55°F)	17 mm (0.7 inches)	60%	high
October Weather	16°C (60°F)	14 mm (0.5 inches)	54%	very high
November Weather	20°C (68°F)	27 mm (1.1 inches)	47%	extreme
December Weather	23°C (74°F)	19 mm (0.8 inches)	42%	extreme