September Weather in Union y Progreso, Mexico

Last updated: August 27, 2025

In September, the average temperature in Union y Progreso, Mexico hovers around 24°C (76°F), offering a pleasant climate for visitors. Expect temperatures to range from a comfortable 18°C (65°F) to a warm 32°C (90°F). However, be prepared for ample rainfall, with 224 mm (8.8 in) falling over approximately 26 days. The air will feel quite humid, maintaining an average humidity level of 87%.

September Temperature in Union y Progreso

In September in Union y Progreso, the average temperature is 24°C (76°F). Maximums can reach 32°C (90°F), and minimums can be as low as 18°C (65°F). This pleasant climate makes Union y Progreso an ideal destination for travelers seeking warmth and outdoor activities.

September Weather in Union y Progreso: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Union y Progreso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union y Progreso, September typically has an average temperature of 24°C (76°F), with highs reaching up to 32°C (90°F) and lows dropping to around 18°C (65°F).

Data source: Temperature data for Union y Progreso generated using information from the Copernicus Climate Change Service.

September Precipitation in Union y Progreso

In Union y Progreso in September, the precipitation amount is 224 mm (8.8 in) spread over 26 days.

September Precipitation Trends in Union y Progreso

The chart displays monthly precipitation patterns in Union y Progreso, 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 Union y Progreso, September typically receives around 224 mm (8.8 inches) of precipitation spread over approximately 26 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 Union y Progreso

In Union y Progreso in September, humidity is 87%. With an average temperature of 24°C (76°F), this humidity feels like a warm, clingy blanket enveloping you, making travel feel sluggish and sticky as you navigate the air thick with moisture.

September Average Humidity in Union y Progreso

This chart illustrates the average monthly humidity levels in Union y Progreso, 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 Union y Progreso is approximately 87%, 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 Union y Progreso

In Union y Progreso 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 Union y Progreso.

Maximum UV Index Levels in Union y Progreso for September

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

Data source: Union y Progreso 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 Union y Progreso Compares to Other Months

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

This table compares monthly weather conditions in Union y Progreso, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (69°F)	7 mm (0.3 inches)	83%	very high
February Weather	22°C (72°F)	5 mm (0.2 inches)	76%	extreme
March Weather	23°C (74°F)	6 mm (0.2 inches)	66%	extreme
April Weather	25°C (77°F)	22 mm (0.9 inches)	59%	extreme
May Weather	26°C (78°F)	109 mm (4.3 inches)	64%	extreme
June Weather	24°C (76°F)	223 mm (8.8 inches)	69%	extreme
July Weather	25°C (77°F)	140 mm (5.5 inches)	82%	extreme
August Weather	24°C (76°F)	184 mm (7.2 inches)	87%	extreme
September Weather	24°C (76°F)	224 mm (8.8 inches)	87%	extreme
October Weather	23°C (74°F)	144 mm (5.7 inches)	88%	extreme
November Weather	22°C (71°F)	20 mm (0.8 inches)	88%	very high
December Weather	21°C (70°F)	12 mm (0.5 inches)	88%	very high