September Weather in Aurora, United States

Last updated: June 24, 2025

In September, the average temperature in Aurora, United States is a pleasant 23°C (73°F). Expect a minimum of 7°C (44°F) and a maximum soaring up to 34°C (94°F). Be prepared for 58 mm (2.3 in) of precipitation over 6 days, along with an average humidity of 64%.

September Temperature in Aurora

In September in Aurora, the average temperature is 23°C (73°F). The maximum can reach 34°C (94°F), while the minimum can drop as low as 7°C (44°F). This range of temperatures makes Aurora an ideal destination to enjoy both warm days and cooler evenings during your travels.

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

The chart illustrates September temperature patterns in Aurora, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aurora, September typically has an average temperature of 23°C (73°F), with highs reaching up to 34°C (94°F) and lows dropping to around 7°C (44°F).

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

September Precipitation in Aurora

In Aurora in September, the precipitation amount is 58 mm (2.3 in) over the course of 6 days.

September Precipitation Trends in Aurora

The chart displays monthly precipitation patterns in Aurora, 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 Aurora, September typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 6 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 Aurora

In Aurora in September, humidity is 64%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel quite comfortable yet slightly sticky, urging travelers to enjoy leisurely activities early in the day or seek shade during peak hours.

September Average Humidity in Aurora

This chart illustrates the average monthly humidity levels in Aurora, 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 Aurora is approximately 64%, 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 Aurora

In Aurora in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Aurora.

Maximum UV Index Levels in Aurora for September

The chart shows the monthly maximum UV Index (UVI) for Aurora 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 Aurora typically reaches 9, which falls under the very high exposure category.

Data source: Aurora 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 Aurora Compares to Other Months

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

This table compares monthly weather conditions in Aurora, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	85 mm (3.3 inches)	81%	moderate
February Weather	3°C (38°F)	87 mm (3.4 inches)	78%	high
March Weather	10°C (50°F)	146 mm (5.8 inches)	76%	high
April Weather	13°C (56°F)	158 mm (6.2 inches)	78%	very high
May Weather	19°C (66°F)	167 mm (6.6 inches)	83%	very high
June Weather	24°C (76°F)	87 mm (3.4 inches)	83%	extreme
July Weather	26°C (79°F)	85 mm (3.4 inches)	78%	extreme
August Weather	25°C (77°F)	128 mm (5.0 inches)	68%	very high
September Weather	23°C (73°F)	58 mm (2.3 inches)	64%	very high
October Weather	15°C (59°F)	152 mm (6.0 inches)	70%	high
November Weather	8°C (47°F)	67 mm (2.6 inches)	83%	moderate
December Weather	5°C (42°F)	53 mm (2.1 inches)	87%	moderate