September Weather in El Paso, United States

Last updated: June 24, 2025

In El Paso, United States, the average temperature in September is a comfortable 25°C (78°F). However, temperatures can vary significantly, dipping to a minimum of 10°C (50°F) and soaring to a maximum of 37°C (99°F). Be prepared for some rainfall, with an average precipitation of 24 mm (1.0 in) spread over about 4 days. Additionally, you can expect an average humidity of 74%, contributing to that warm and tropical feel!

September Temperature in El Paso

In September in El Paso, the average temperature is 25°C (78°F). Maximums can reach 37°C (99°F), and minimums can be as low as 10°C (50°F). It's an ideal time for travelers seeking warm weather and pleasant conditions for outdoor activities.

September Weather in El Paso: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in El Paso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Paso, September typically has an average temperature of 25°C (78°F), with highs reaching up to 37°C (99°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in El Paso

In El Paso in September, the precipitation amount is 24 mm (1.0 in) over the course of 4 days.

September Precipitation Trends in El Paso

The chart displays monthly precipitation patterns in El Paso, 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 El Paso, September typically receives around 24 mm (1.0 inches) of precipitation spread over approximately 4 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 El Paso

In El Paso in September humidity is 74%. With an average temperature of 25°C (78°F), this humidity feels like you're enveloped in a warm, thick blanket, making outdoor activities feel more strenuous and necessitating frequent breaks and hydration for comfortable travel.

September Average Humidity in El Paso

This chart illustrates the average monthly humidity levels in El Paso, 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 El Paso is approximately 74%, 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 El Paso

In El Paso in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in El Paso.

Maximum UV Index Levels in El Paso for September

The chart shows the monthly maximum UV Index (UVI) for El Paso 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 El Paso typically reaches 11, which falls under the extreme exposure category.

Data source: El Paso 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 El Paso Compares to Other Months

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

This table compares monthly weather conditions in El Paso, 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)	11 mm (0.4 inches)	81%	moderate
February Weather	10°C (51°F)	12 mm (0.5 inches)	77%	very high
March Weather	15°C (59°F)	18 mm (0.7 inches)	65%	very high
April Weather	20°C (69°F)	4 mm (0.1 inches)	53%	extreme
May Weather	25°C (77°F)	3 mm (0.1 inches)	51%	extreme
June Weather	29°C (85°F)	22 mm (0.9 inches)	51%	extreme
July Weather	29°C (84°F)	27 mm (1.0 inches)	60%	extreme
August Weather	29°C (84°F)	30 mm (1.2 inches)	63%	extreme
September Weather	25°C (78°F)	24 mm (1.0 inches)	74%	extreme
October Weather	19°C (67°F)	19 mm (0.7 inches)	75%	very high
November Weather	13°C (56°F)	13 mm (0.5 inches)	82%	high
December Weather	8°C (47°F)	16 mm (0.6 inches)	87%	moderate