September Weather in La Union del Cuatro, Mexico

Last updated: August 27, 2025

In La Union del Cuatro, Mexico during September, the average temperature is a pleasant 21°C (70°F). Expect a minimum of 16°C (61°F) and a maximum reaching 29°C (85°F). However, be prepared for some rain, as the area receives an average precipitation of 177 mm (7.0 in) over 22 days. With an average humidity of 84%, it's advisable to stay hydrated and enjoy the balmy atmosphere!

September Temperature in La Union del Cuatro

In September in La Union del Cuatro, the average temperature is 21°C (70°F). Maximums can reach 29°C (85°F), and minimums can be as low as 16°C (61°F). This mild climate makes La Union del Cuatro an ideal destination for travelers seeking comfortable weather conditions.

September Weather in La Union del Cuatro: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in La Union del Cuatro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Union del Cuatro, September typically has an average temperature of 21°C (70°F), with highs reaching up to 29°C (85°F) and lows dropping to around 16°C (61°F).

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

September Precipitation in La Union del Cuatro

In La Union del Cuatro, in September, the precipitation amount is 177 mm (7.0 in) over the course of 22 days.

September Precipitation Trends in La Union del Cuatro

The chart displays monthly precipitation patterns in La Union del Cuatro, 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 Union del Cuatro, September typically receives around 177 mm (7.0 inches) of precipitation spread over approximately 22 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 Union del Cuatro

In La Union del Cuatro in September, humidity is 84%. With an average temperature of 21°C (70°F), this humidity feels like thick, warm air wrapping around you, making outdoor activities quite uncomfortable and necessitating frequent hydration breaks for a more enjoyable travel experience.

September Average Humidity in La Union del Cuatro

This chart illustrates the average monthly humidity levels in La Union del Cuatro, 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 Union del Cuatro is approximately 84%, 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 Union del Cuatro

In La Union del Cuatro 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 La Union del Cuatro, you can check here.

Maximum UV Index Levels in La Union del Cuatro for September

The chart shows the monthly maximum UV Index (UVI) for La Union del Cuatro 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 Union del Cuatro typically reaches 14, which falls under the extreme exposure category.

Data source: La Union del Cuatro 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 Union del Cuatro Compares to Other Months

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

This table compares monthly weather conditions in La Union del Cuatro, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	17°C (63°F)	6 mm (0.2 inches)	64%	very high
February Weather	19°C (66°F)	10 mm (0.4 inches)	57%	extreme
March Weather	22°C (71°F)	2 mm (0.1 inches)	46%	extreme
April Weather	23°C (74°F)	1 mm (0.0 inches)	42%	extreme
May Weather	24°C (76°F)	18 mm (0.7 inches)	51%	extreme
June Weather	23°C (75°F)	103 mm (4.1 inches)	74%	extreme
July Weather	22°C (71°F)	189 mm (7.4 inches)	79%	extreme
August Weather	22°C (71°F)	183 mm (7.2 inches)	81%	extreme
September Weather	21°C (70°F)	177 mm (7.0 inches)	84%	extreme
October Weather	21°C (69°F)	59 mm (2.3 inches)	75%	extreme
November Weather	19°C (66°F)	18 mm (0.7 inches)	71%	very high
December Weather	17°C (63°F)	6 mm (0.2 inches)	74%	very high