September Weather in Auburn, United States

Last updated: June 24, 2025

In September, the average temperature in Auburn, United States hovers around 20°C (68°F), offering a comfortable climate. Expect temperatures to range from a cool 3°C (39°F) at their lowest to a warm 33°C (92°F) at their peak. During this month, precipitation averages 64 mm (2.5 in) spread over 7 days, while humidity levels sit at a high 78%. Enjoy the balance of warmth and refreshing breezes!

September Temperature in Auburn

In September in Auburn, the average temperature is 20°C (68°F), with maximums reaching 33°C (92°F) and minimums dipping as low as 3°C (39°F). It's a great time to experience Auburn's diverse climate, so pack accordingly for both warm days and cooler nights.

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

The chart illustrates September temperature patterns in Auburn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Auburn, September typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (39°F).

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

September Precipitation in Auburn

In Auburn in September, the precipitation amount is 64 mm (2.5 in) accumulated over a period of 7 days.

September Precipitation Trends in Auburn

The chart displays monthly precipitation patterns in Auburn, 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 Auburn, September typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 7 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 Auburn

In Auburn in September humidity is 78%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes exploring the sights a bit sticky, so travelers should stay hydrated and take frequent breaks in the shade.

September Average Humidity in Auburn

This chart illustrates the average monthly humidity levels in Auburn, 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 Auburn is approximately 78%, 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 Auburn

In Auburn 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 Auburn.

Maximum UV Index Levels in Auburn for September

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

Data source: Auburn 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 Auburn Compares to Other Months

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

This table compares monthly weather conditions in Auburn, 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 (28°F)	72 mm (2.9 inches)	85%	moderate
February Weather	-1°C (30°F)	76 mm (3.0 inches)	85%	moderate
March Weather	4°C (40°F)	101 mm (4.0 inches)	86%	high
April Weather	9°C (49°F)	96 mm (3.8 inches)	87%	very high
May Weather	17°C (62°F)	129 mm (5.1 inches)	81%	very high
June Weather	22°C (72°F)	126 mm (5.0 inches)	82%	very high
July Weather	24°C (76°F)	104 mm (4.1 inches)	81%	very high
August Weather	23°C (73°F)	100 mm (3.9 inches)	79%	very high
September Weather	20°C (68°F)	64 mm (2.5 inches)	78%	very high
October Weather	13°C (56°F)	104 mm (4.1 inches)	81%	high
November Weather	5°C (41°F)	81 mm (3.2 inches)	89%	moderate
December Weather	1°C (34°F)	59 mm (2.3 inches)	86%	low