September Weather in Pecos, United States

Last updated: June 24, 2025

In September, the average temperature in Pecos, United States hovers around 27°C (80°F), creating a pleasantly warm atmosphere. However, temperatures can vary significantly, dipping as low as 8°C (47°F) and soaring up to 41°C (106°F). Expect an average of 33 mm (1.3 in) of precipitation over approximately 5 days, contributing to an average humidity of 74%. Whether you're enjoying the sun or bracing for a brief shower, this climate keeps things interesting!

September Temperature in Pecos

In September in Pecos, the average temperature is 27°C (80°F), with maximums reaching 41°C (106°F) and minimums dipping as low as 8°C (47°F). Be prepared for warm days and cooler nights when traveling during this time.

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

The chart illustrates September temperature patterns in Pecos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pecos, September typically has an average temperature of 27°C (80°F), with highs reaching up to 41°C (106°F) and lows dropping to around 8°C (47°F).

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

September Precipitation in Pecos

In Pecos in September, the precipitation amount is 33 mm (1.3 in) over the course of 5 days.

September Precipitation Trends in Pecos

The chart displays monthly precipitation patterns in Pecos, 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 Pecos, September typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 5 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 Pecos

In Pecos in September, humidity is 74%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities sticky and uncomfortable for traveling.

September Average Humidity in Pecos

This chart illustrates the average monthly humidity levels in Pecos, 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 Pecos 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 Pecos

In Pecos 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 Pecos.

Maximum UV Index Levels in Pecos for September

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

Data source: Pecos 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 Pecos Compares to Other Months

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

This table compares monthly weather conditions in Pecos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	10 mm (0.4 inches)	76%	moderate
February Weather	11°C (53°F)	8 mm (0.3 inches)	74%	very high
March Weather	17°C (63°F)	17 mm (0.7 inches)	63%	very high
April Weather	22°C (71°F)	9 mm (0.4 inches)	61%	extreme
May Weather	27°C (80°F)	16 mm (0.6 inches)	68%	extreme
June Weather	30°C (87°F)	23 mm (0.9 inches)	70%	extreme
July Weather	31°C (88°F)	13 mm (0.5 inches)	70%	extreme
August Weather	31°C (87°F)	22 mm (0.9 inches)	67%	extreme
September Weather	27°C (80°F)	33 mm (1.3 inches)	74%	extreme
October Weather	21°C (70°F)	22 mm (0.8 inches)	75%	very high
November Weather	15°C (59°F)	8 mm (0.3 inches)	84%	high
December Weather	11°C (51°F)	10 mm (0.4 inches)	85%	moderate