September Weather in Clarendon, United States

Last updated: June 24, 2025

In Clarendon, United States, the average temperature for September is a comfortable 25°C (77°F). Expect a minimum of 10°C (50°F) and a maximum of 36°C (98°F). During this month, the area experiences approximately 89 mm (3.5 in) of precipitation spread over about 7 days, contributing to an average humidity of 71%. Prepare for a mix of warm days and refreshing showers!

September Temperature in Clarendon

In September in Clarendon, the average temperature is 25°C (77°F). Maximums can reach 36°C (98°F) and minimums can be as low as 10°C (50°F). This makes it a perfect time for travelers seeking warm days and cool evenings.

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

The chart illustrates September temperature patterns in Clarendon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clarendon, September typically has an average temperature of 25°C (77°F), with highs reaching up to 36°C (98°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in Clarendon

In Clarendon in September, the total precipitation amount is 89 mm (3.5 in) spread over a period of 7 days.

September Precipitation Trends in Clarendon

The chart displays monthly precipitation patterns in Clarendon, 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 Clarendon, September typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 7 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 Clarendon

In Clarendon in September humidity is 71%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace, making outdoor exploration a bit sticky but still enjoyable, especially if you take breaks in shaded areas and stay hydrated.

September Average Humidity in Clarendon

This chart illustrates the average monthly humidity levels in Clarendon, 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 Clarendon is approximately 71%, 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 Clarendon

In Clarendon 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 Clarendon.

Maximum UV Index Levels in Clarendon for September

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

Data source: Clarendon 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 Clarendon Compares to Other Months

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

This table compares monthly weather conditions in Clarendon, 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)	106 mm (4.2 inches)	84%	moderate
February Weather	8°C (46°F)	168 mm (6.6 inches)	83%	high
March Weather	13°C (57°F)	159 mm (6.3 inches)	81%	very high
April Weather	16°C (62°F)	147 mm (5.8 inches)	81%	very high
May Weather	22°C (73°F)	159 mm (6.2 inches)	83%	extreme
June Weather	26°C (79°F)	103 mm (4.0 inches)	83%	extreme
July Weather	28°C (82°F)	115 mm (4.5 inches)	81%	extreme
August Weather	27°C (81°F)	116 mm (4.6 inches)	74%	very high
September Weather	25°C (77°F)	89 mm (3.5 inches)	71%	very high
October Weather	18°C (65°F)	132 mm (5.2 inches)	76%	high
November Weather	11°C (52°F)	80 mm (3.1 inches)	84%	moderate
December Weather	9°C (48°F)	159 mm (6.2 inches)	88%	moderate