September Weather in La Pena, Mexico

Last updated: August 27, 2025

In La Pena, Mexico, the average temperature in September hovers around 19°C (66°F). Expect temperatures to range from a cool 11°C (51°F) to a warm 29°C (84°F). This month brings 207 mm (8.2 in) of precipitation spread over 27 days, contributing to an average humidity level of 83%. Stay prepared and enjoy the season!

September Temperature in La Pena

In September in La Pena, the average temperature is 19°C (66°F). Maximum temperatures can reach 29°C (84°F), while the minimum can dip as low as 11°C (51°F). This pleasant climate makes La Pena an ideal destination for travelers seeking comfortable weather during their visit.

September Weather in La Pena: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in La Pena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Pena, September typically has an average temperature of 19°C (66°F), with highs reaching up to 29°C (84°F) and lows dropping to around 11°C (51°F).

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

September Precipitation in La Pena

In La Pena in September, the precipitation amount is 207 mm (8.2 in) over the course of 27 days.

September Precipitation Trends in La Pena

The chart displays monthly precipitation patterns in La Pena, 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 La Pena, September typically receives around 207 mm (8.2 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 La Pena

In La Pena in September, humidity is 83%. With an average temperature of 19°C (66°F), this humidity feels like a heavy blanket wrapping around you, making travel feel more sluggish and muggy, yet there's a refreshing coolness in the air that invites you to explore.

September Average Humidity in La Pena

This chart illustrates the average monthly humidity levels in La Pena, 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 La Pena is approximately 83%, 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 La Pena

In La Pena 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 La Pena.

Maximum UV Index Levels in La Pena for September

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

Data source: La Pena 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 La Pena Compares to Other Months

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

This table compares monthly weather conditions in La Pena, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	25 mm (1.0 inches)	74%	very high
February Weather	13°C (56°F)	41 mm (1.6 inches)	66%	extreme
March Weather	16°C (60°F)	6 mm (0.2 inches)	61%	extreme
April Weather	17°C (63°F)	5 mm (0.2 inches)	56%	extreme
May Weather	19°C (67°F)	24 mm (0.9 inches)	61%	extreme
June Weather	20°C (68°F)	161 mm (6.3 inches)	73%	extreme
July Weather	19°C (66°F)	327 mm (12.9 inches)	82%	extreme
August Weather	19°C (67°F)	269 mm (10.6 inches)	83%	extreme
September Weather	19°C (66°F)	207 mm (8.2 inches)	83%	extreme
October Weather	18°C (65°F)	117 mm (4.6 inches)	78%	extreme
November Weather	15°C (60°F)	24 mm (1.0 inches)	77%	very high
December Weather	13°C (55°F)	39 mm (1.5 inches)	78%	high