September Weather in Fayetteville, United States

Last updated: June 24, 2025

In September, the average temperature in Fayetteville, United States hovers around 24°C (76°F), creating a pleasant climate. Expect a minimum of 9°C (49°F) and a maximum of 35°C (96°F), offering a wide range of weather. Be prepared for 173 mm (6.8 in) of precipitation over approximately 10 days, contributing to an average humidity of 79%.

September Temperature in Fayetteville

In September in Fayetteville, the average temperature is 24°C (76°F). The maximum can reach 35°C (96°F), while the minimum can be as low as 9°C (49°F). This makes Fayetteville a great destination for travelers seeking warm weather, but it's wise to pack layers for cooler evenings.

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

The chart illustrates September temperature patterns in Fayetteville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fayetteville, September typically has an average temperature of 24°C (76°F), with highs reaching up to 35°C (96°F) and lows dropping to around 9°C (49°F).

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

September Precipitation in Fayetteville

In Fayetteville in September, the precipitation amount is 173 mm (6.8 in) over the course of 10 days.

September Precipitation Trends in Fayetteville

The chart displays monthly precipitation patterns in Fayetteville, 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 Fayetteville, September typically receives around 173 mm (6.8 inches) of precipitation spread over approximately 10 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 Fayetteville

In Fayetteville in September, humidity is 79%. With an average temperature of 24°C (76°F), this humidity feels like a thick blanket wrapped around you, making traveling somewhat uncomfortable and sticky, as you navigate through the warmth while constantly seeking shade and hydration.

September Average Humidity in Fayetteville

This chart illustrates the average monthly humidity levels in Fayetteville, 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 Fayetteville is approximately 79%, 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 Fayetteville

In Fayetteville 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 Fayetteville.

Maximum UV Index Levels in Fayetteville for September

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

Data source: Fayetteville 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 Fayetteville Compares to Other Months

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

This table compares monthly weather conditions in Fayetteville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (46°F)	89 mm (3.5 inches)	85%	moderate
February Weather	10°C (51°F)	93 mm (3.7 inches)	82%	high
March Weather	13°C (55°F)	70 mm (2.8 inches)	81%	very high
April Weather	18°C (64°F)	98 mm (3.9 inches)	80%	very high
May Weather	23°C (73°F)	105 mm (4.1 inches)	81%	extreme
June Weather	25°C (78°F)	123 mm (4.8 inches)	81%	extreme
July Weather	27°C (82°F)	114 mm (4.5 inches)	81%	extreme
August Weather	26°C (80°F)	157 mm (6.2 inches)	80%	very high
September Weather	24°C (76°F)	173 mm (6.8 inches)	79%	very high
October Weather	19°C (67°F)	58 mm (2.3 inches)	80%	very high
November Weather	12°C (53°F)	82 mm (3.2 inches)	85%	moderate
December Weather	9°C (49°F)	117 mm (4.6 inches)	86%	moderate