September Weather in Collierville, United States

Last updated: June 24, 2025

In Collierville, United States, the average temperature in September hovers around 24°C (76°F). Temperatures can dip to a minimum of 10°C (51°F) and soar to a maximum of 36°C (96°F). Expect about 101 mm (4.0 in) of precipitation over 8 days, with an average humidity level of 70%. Perfect for those who enjoy a warm, yet occasionally wet climate!

September Temperature in Collierville

In September in Collierville, the average temperature is 24°C (76°F), with maximums reaching up to 36°C (96°F) and minimums dropping as low as 10°C (51°F). This makes it an ideal destination for travelers seeking warm weather while still enjoying cooler evenings.

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

The chart illustrates September temperature patterns in Collierville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Collierville, September typically has an average temperature of 24°C (76°F), with highs reaching up to 36°C (96°F) and lows dropping to around 10°C (51°F).

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

September Precipitation in Collierville

In Collierville in September, the precipitation amount is 101 mm (4.0 in) spread over 8 days.

September Precipitation Trends in Collierville

The chart displays monthly precipitation patterns in Collierville, 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 Collierville, September typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 8 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 Collierville

In Collierville in September, humidity is 70%. With an average temperature of 24°C (76°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel a bit sticky and heavier, so travelers should stay hydrated and take regular breaks to enjoy the sights comfortably.

September Average Humidity in Collierville

This chart illustrates the average monthly humidity levels in Collierville, 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 Collierville is approximately 70%, 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 Collierville

In Collierville 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 Collierville.

Maximum UV Index Levels in Collierville for September

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

Data source: Collierville 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 Collierville Compares to Other Months

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

This table compares monthly weather conditions in Collierville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	108 mm (4.3 inches)	86%	moderate
February Weather	8°C (46°F)	176 mm (6.9 inches)	85%	high
March Weather	13°C (55°F)	169 mm (6.7 inches)	84%	high
April Weather	16°C (61°F)	144 mm (5.7 inches)	81%	very high
May Weather	22°C (72°F)	119 mm (4.7 inches)	83%	very high
June Weather	26°C (78°F)	130 mm (5.1 inches)	83%	extreme
July Weather	27°C (81°F)	143 mm (5.6 inches)	80%	extreme
August Weather	26°C (80°F)	123 mm (4.9 inches)	73%	very high
September Weather	24°C (76°F)	101 mm (4.0 inches)	70%	very high
October Weather	18°C (65°F)	108 mm (4.3 inches)	73%	high
November Weather	10°C (51°F)	77 mm (3.0 inches)	85%	moderate
December Weather	8°C (47°F)	148 mm (5.8 inches)	88%	moderate