September Weather in Huntsville, United States

Last updated: June 24, 2025

In September, the average temperature in Huntsville, United States is a comfortable 22°C (72°F). Expect a minimum of 7°C (44°F) and a maximum of 33°C (92°F), providing a pleasant range for outdoor activities. With an average humidity of 59%, you might encounter some refreshing days, complemented by a total precipitation of 64 mm (2.5 in) spread over approximately 6 days. Enjoy the diverse climate of this beautiful destination!

September Temperature in Huntsville

In September in Huntsville, the average temperature is 22°C (72°F). Maximums can reach 33°C (92°F), and minimums can be as low as 7°C (44°F). This pleasant range makes Huntsville an ideal destination for travelers seeking a comfortable climate.

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

The chart illustrates September temperature patterns in Huntsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Huntsville, September typically has an average temperature of 22°C (72°F), with highs reaching up to 33°C (92°F) and lows dropping to around 7°C (44°F).

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

September Precipitation in Huntsville

In Huntsville in September, the total precipitation amount is 64 mm (2.5 in) during a span of 6 days.

September Precipitation Trends in Huntsville

The chart displays monthly precipitation patterns in Huntsville, 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 Huntsville, September typically receives around 64 mm (2.5 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 Huntsville

In Huntsville in September humidity is 59%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making it a pleasant time for outdoor adventures and sightseeing, though occasional breezes can refresh your experience.

September Average Humidity in Huntsville

This chart illustrates the average monthly humidity levels in Huntsville, 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 Huntsville is approximately 59%, 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 Huntsville

In Huntsville 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 Huntsville.

Maximum UV Index Levels in Huntsville for September

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

Data source: Huntsville 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 Huntsville Compares to Other Months

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

This table compares monthly weather conditions in Huntsville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (37°F)	86 mm (3.4 inches)	82%	moderate
February Weather	4°C (40°F)	108 mm (4.2 inches)	79%	high
March Weather	10°C (51°F)	145 mm (5.7 inches)	77%	very high
April Weather	13°C (56°F)	162 mm (6.4 inches)	78%	very high
May Weather	19°C (66°F)	191 mm (7.5 inches)	82%	extreme
June Weather	23°C (74°F)	108 mm (4.3 inches)	81%	extreme
July Weather	25°C (78°F)	96 mm (3.8 inches)	75%	extreme
August Weather	24°C (76°F)	139 mm (5.5 inches)	61%	very high
September Weather	22°C (72°F)	64 mm (2.5 inches)	59%	very high
October Weather	15°C (59°F)	134 mm (5.3 inches)	69%	high
November Weather	8°C (47°F)	80 mm (3.1 inches)	82%	moderate
December Weather	6°C (43°F)	81 mm (3.2 inches)	87%	moderate