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September Weather in Las Penas, Mexico

Last updated: August 27, 2025

In Las Penas, Mexico, the average temperature in September is a comfortable 19°C (67°F). However, temperatures can range from a minimum of 13°C (55°F) to a maximum of 29°C (85°F). Expect about 345 mm (13.6 in) of precipitation spread over 26 days, contributing to a notably high average humidity of 84%.

September Temperature in Las Penas

In September in Las Penas, the average temperature is 19°C (67°F). Maximum temperatures can reach 29°C (85°F), while minimums can be as low as 13°C (55°F). This mild climate makes it an ideal time for outdoor activities and sightseeing.

September Weather in Las Penas: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Las Penas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Las Penas, September typically has an average temperature of 19°C (67°F), with highs reaching up to 29°C (85°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec596265686968676767666260
Data source: Temperature data for Las Penas 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 Las Penas

In Las Penas in September, the precipitation amount reaches 345 mm (13.6 in) over the course of 26 days.

September Precipitation Trends in Las Penas

The chart displays monthly precipitation patterns in Las Penas, 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 Las Penas, September typically receives around 345 mm (13.6 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec252527621593412143393452256125
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Las Penas

In Las Penas in September humidity is 84%. With an average temperature of 19°C (67°F), this humidity feels like a warm, sticky embrace that can make traveling somewhat uncomfortable, as the air becomes thick and heavy, often leaving you feeling fatigued and in need of constant hydration.

September Average Humidity in Las Penas

This chart illustrates the average monthly humidity levels in Las Penas, 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 Las Penas is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%80%73%67%72%73%76%80%84%89%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Las Penas

In Las Penas in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Las Penas, you can check here.

Maximum UV Index Levels in Las Penas for September

The chart shows the monthly maximum UV Index (UVI) for Las Penas 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 Las Penas typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414151415131412109
Data source: Las Penas 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 Las Penas Compares to Other Months

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

This table compares monthly weather conditions in Las Penas, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)25 mm (1.0 inches)84%very high
February Weather17°C (63°F)25 mm (1.0 inches)80%extreme
March Weather18°C (65°F)27 mm (1.0 inches)73%extreme
April Weather20°C (68°F)62 mm (2.4 inches)67%extreme
May Weather21°C (70°F)159 mm (6.3 inches)72%extreme
June Weather20°C (68°F)341 mm (13.4 inches)73%extreme
July Weather19°C (67°F)214 mm (8.4 inches)76%extreme
August Weather19°C (67°F)339 mm (13.3 inches)80%extreme
September Weather19°C (67°F)345 mm (13.6 inches)84%extreme
October Weather19°C (66°F)225 mm (8.9 inches)89%extreme
November Weather16°C (62°F)61 mm (2.4 inches)88%very high
December Weather15°C (60°F)25 mm (1.0 inches)88%very high

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