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September Weather in La Trinidad, Mexico

Last updated: August 27, 2025

In La Trinidad, Mexico, the average temperature in September hovers around 18°C (65°F). Expect lows of 8°C (47°F) and highs reaching up to 28°C (82°F). During this month, you can anticipate a precipitation amount of 134 mm (5.3 in) over approximately 18 days, contributing to an average humidity level of 81%.

September Temperature in La Trinidad

In September in La Trinidad, the average temperature is 18°C (65°F), with maximums reaching 28°C (82°F) and minimums dipping as low as 8°C (47°F). This mild weather makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in La Trinidad, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Trinidad, September typically has an average temperature of 18°C (65°F), with highs reaching up to 28°C (82°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec525761656868666664625753
Data source: Temperature data for La Trinidad 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 Trinidad

In La Trinidad in September, the precipitation amount is 134 mm (5.3 in) over the course of 18 days.

September Precipitation Trends in La Trinidad

The chart displays monthly precipitation patterns in La Trinidad, 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 Trinidad, September typically receives around 134 mm (5.3 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec1081625507714083134391013
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in La Trinidad

In La Trinidad in September, humidity is 81%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick and sultry—a challenging environment for traveling.

September Average Humidity in La Trinidad

This chart illustrates the average monthly humidity levels in La Trinidad, 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 Trinidad is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%69%65%64%75%78%67%64%82%86%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in La Trinidad

In La Trinidad 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 Trinidad.

Maximum UV Index Levels in La Trinidad for September

The chart shows the monthly maximum UV Index (UVI) for La Trinidad 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 Trinidad typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131414141414131297
Data source: La Trinidad 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 Trinidad Compares to Other Months

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

This table compares monthly weather conditions in La Trinidad, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)10 mm (0.4 inches)75%very high
February Weather14°C (57°F)8 mm (0.3 inches)69%very high
March Weather16°C (62°F)16 mm (0.6 inches)65%extreme
April Weather19°C (66°F)25 mm (1.0 inches)64%extreme
May Weather20°C (69°F)50 mm (2.0 inches)75%extreme
June Weather20°C (68°F)77 mm (3.0 inches)78%extreme
July Weather19°C (67°F)140 mm (5.5 inches)67%extreme
August Weather19°C (66°F)83 mm (3.3 inches)64%extreme
September Weather18°C (65°F)134 mm (5.3 inches)81%extreme
October Weather17°C (62°F)39 mm (1.5 inches)85%extreme
November Weather14°C (57°F)10 mm (0.4 inches)87%very high
December Weather12°C (53°F)13 mm (0.5 inches)87%high

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