September Weather in El Infiernillo, Mexico

Last updated: August 27, 2025

In September, the average temperature in El Infiernillo, Mexico hovers around 20°C (67°F). Expect a minimum of 11°C (52°F) and a comfortable maximum of 30°C (86°F). However, be prepared for some rain, as 175 mm (6.9 in) of precipitation can fall over 21 days. Overall, the average humidity sits at a warm 81%, making it a humid yet pleasant time of year.

September Temperature in El Infiernillo

In September in El Infiernillo, the average temperature is 20°C (67°F), with maximums reaching 30°C (86°F) and minimums dipping as low as 11°C (52°F). This pleasant climate makes El Infiernillo an ideal destination for outdoor activities and exploration during your travels.

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

The chart illustrates September temperature patterns in El Infiernillo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Infiernillo, September typically has an average temperature of 20°C (67°F), with highs reaching up to 30°C (86°F) and lows dropping to around 11°C (52°F).

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

September Precipitation in El Infiernillo

In El Infiernillo in September, the precipitation amount reaches 175 mm (6.9 in) over the course of 21 days.

September Precipitation Trends in El Infiernillo

The chart displays monthly precipitation patterns in El Infiernillo, 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 Infiernillo, September typically receives around 175 mm (6.9 inches) of precipitation spread over approximately 21 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 Infiernillo

In El Infiernillo in September, humidity is 81%. With an average temperature of 20°C (67°F), this humidity feels like a warm embrace, making traveling somewhat stifling and requiring frequent breaks to stay comfortable.

September Average Humidity in El Infiernillo

This chart illustrates the average monthly humidity levels in El Infiernillo, 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 Infiernillo is approximately 81%, 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 Infiernillo

In El Infiernillo in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in El Infiernillo.

Maximum UV Index Levels in El Infiernillo for September

The chart shows the monthly maximum UV Index (UVI) for El Infiernillo 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 Infiernillo typically reaches 13, which falls under the extreme exposure category.

Data source: El Infiernillo 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 Infiernillo Compares to Other Months

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

This table compares monthly weather conditions in El Infiernillo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	15°C (60°F)	5 mm (0.2 inches)	74%	very high
February Weather	18°C (64°F)	8 mm (0.3 inches)	65%	extreme
March Weather	20°C (69°F)	7 mm (0.3 inches)	58%	extreme
April Weather	22°C (72°F)	3 mm (0.1 inches)	58%	extreme
May Weather	23°C (74°F)	30 mm (1.2 inches)	67%	extreme
June Weather	22°C (72°F)	157 mm (6.2 inches)	76%	extreme
July Weather	20°C (68°F)	212 mm (8.3 inches)	67%	extreme
August Weather	20°C (68°F)	175 mm (6.9 inches)	68%	extreme
September Weather	20°C (67°F)	175 mm (6.9 inches)	81%	extreme
October Weather	19°C (67°F)	63 mm (2.5 inches)	83%	extreme
November Weather	17°C (63°F)	21 mm (0.8 inches)	84%	very high
December Weather	15°C (60°F)	4 mm (0.1 inches)	81%	very high