September Weather in El Llano, Mexico

Last updated: August 27, 2025

In September, the average temperature in El Llano, Mexico reaches a comfortable 27°C (81°F). Expect pleasant days with a minimum of 23°C (74°F) and occasional highs of 32°C (91°F). However, prepare for some rain, as the region receives an average precipitation of 367 mm (14.5 in) over 27 days. With an average humidity of 78%, the atmosphere can feel quite a bit more tropical, making it the perfect time to enjoy the beauty of El Llano!

September Temperature in El Llano

In September in El Llano, the average temperature is 27°C (81°F). The maximum can reach 32°C (91°F), while the minimum can be as low as 23°C (74°F). This pleasant climate makes it an ideal time for outdoor activities and sightseeing.

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

The chart illustrates September temperature patterns in El Llano, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Llano, September typically has an average temperature of 27°C (81°F), with highs reaching up to 32°C (91°F) and lows dropping to around 23°C (74°F).

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

September Precipitation in El Llano

In El Llano in September, the total precipitation amount is 367 mm (14.5 in), occurring over the course of 27 days.

September Precipitation Trends in El Llano

The chart displays monthly precipitation patterns in El Llano, 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 Llano, September typically receives around 367 mm (14.5 inches) of precipitation spread over approximately 27 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 Llano

In El Llano in September humidity is 78%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy embrace that makes traveling feel both invigorating and exhausting. Moments spent outside can quickly become clammy and uncomfortable, urging travelers to seek shade and hydration as they explore.

September Average Humidity in El Llano

This chart illustrates the average monthly humidity levels in El Llano, 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 Llano is approximately 78%, 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 Llano

In El Llano in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in El Llano.

Maximum UV Index Levels in El Llano for September

The chart shows the monthly maximum UV Index (UVI) for El Llano 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 Llano typically reaches 12, which falls under the extreme exposure category.

Data source: El Llano 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 Llano Compares to Other Months

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

This table compares monthly weather conditions in El Llano, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (71°F)	17 mm (0.7 inches)	71%	very high
February Weather	22°C (71°F)	18 mm (0.7 inches)	69%	very high
March Weather	22°C (73°F)	0 mm (0.0 inches)	67%	extreme
April Weather	23°C (74°F)	0 mm (0.0 inches)	66%	extreme
May Weather	25°C (77°F)	2 mm (0.1 inches)	69%	extreme
June Weather	27°C (80°F)	117 mm (4.6 inches)	78%	extreme
July Weather	28°C (82°F)	223 mm (8.8 inches)	79%	extreme
August Weather	28°C (82°F)	426 mm (16.8 inches)	78%	extreme
September Weather	27°C (81°F)	367 mm (14.5 inches)	78%	extreme
October Weather	27°C (81°F)	190 mm (7.5 inches)	75%	extreme
November Weather	25°C (78°F)	9 mm (0.4 inches)	74%	very high
December Weather	23°C (73°F)	7 mm (0.3 inches)	74%	high