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September Weather in La Pena, Mexico

Last updated: August 27, 2025

In September, the average temperature in La Pena, Mexico is a pleasant 19°C (66°F). Visitors can expect a minimum of 9°C (48°F) and a maximum reaching 30°C (86°F). During this time, precipitation averages 118 mm (4.6 in) over approximately 19 days, with the air holding a notable 80% humidity. Perfect for those who appreciate a balance of warmth and occasional rain!

September Temperature in La Pena

In September in La Pena, the average temperature is 19°C (66°F). Maximums can reach 30°C (86°F) and minimums can drop to as low as 9°C (48°F). This makes it a great time for travelers to enjoy pleasant weather while exploring the area.

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 30°C (86°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec545862666868676865635854
Data source: Temperature data for La Pena generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in La Pena

In La Pena, in September, the precipitation amount is 118 mm (4.6 in), occurring over the course of 19 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 118 mm (4.6 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec141324419612111869118681914
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in La Pena

In La Pena in September humidity is 80%. With an average temperature of 19°C (66°F), this humidity feels like a warm, thick blanket wrapping around you, making outdoor activities feel more strenuous and sticky, which can ultimately dampen the experience of traveling.

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 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%83%84%85%79%71%72%80%85%88%89%
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.
JanFebMarAprMayJunJulAugSepOctNovDec810131314131414131297
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.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)13 mm (0.5 inches)87%very high
February Weather14°C (58°F)13 mm (0.5 inches)85%very high
March Weather17°C (62°F)24 mm (0.9 inches)83%extreme
April Weather19°C (66°F)41 mm (1.6 inches)84%extreme
May Weather20°C (69°F)96 mm (3.8 inches)85%extreme
June Weather20°C (68°F)121 mm (4.8 inches)79%extreme
July Weather20°C (67°F)118 mm (4.6 inches)71%extreme
August Weather20°C (68°F)69 mm (2.7 inches)72%extreme
September Weather19°C (66°F)118 mm (4.6 inches)80%extreme
October Weather17°C (63°F)68 mm (2.7 inches)85%extreme
November Weather14°C (58°F)19 mm (0.8 inches)88%very high
December Weather12°C (55°F)14 mm (0.6 inches)89%high

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