September Weather in Mier, Mexico

Last updated: August 27, 2025

In September, the average temperature in Mier, Mexico hovers around 29°C (85°F). Expect the minimum to dip to 17°C (64°F), while the maximum can soar up to 41°C (106°F). With an average humidity of 73%, you'll feel that tropical touch, alongside 117 mm (4.6 in) of precipitation spread over 9 days.

September Temperature in Mier

In September in Mier, the average temperature is 29°C (85°F), with maximums reaching up to 41°C (106°F) and minimums dropping as low as 17°C (64°F). Be prepared for warm weather and occasional cool evenings while traveling here.

September Weather in Mier: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mier, September typically has an average temperature of 29°C (85°F), with highs reaching up to 41°C (106°F) and lows dropping to around 17°C (64°F).

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

September Precipitation in Mier

In Mier in September, the total precipitation amount is 117 mm (4.6 in) spread over a period of 9 days.

September Precipitation Trends in Mier

The chart displays monthly precipitation patterns in Mier, 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 Mier, September typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 9 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 Mier

In Mier in September, humidity is 73%. With an average temperature of 29°C (85°F), this humidity feels like a warm blanket enveloping you, making outdoor activities quite uncomfortable and sticky for traveling.

September Average Humidity in Mier

This chart illustrates the average monthly humidity levels in Mier, 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 Mier is approximately 73%, 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 Mier

In Mier in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Mier.

Maximum UV Index Levels in Mier for September

The chart shows the monthly maximum UV Index (UVI) for Mier 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 Mier typically reaches 11, which falls under the extreme exposure category.

Data source: Mier 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 Mier Compares to Other Months

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

This table compares monthly weather conditions in Mier, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (61°F)	17 mm (0.7 inches)	83%	high
February Weather	18°C (65°F)	18 mm (0.7 inches)	79%	very high
March Weather	23°C (73°F)	29 mm (1.2 inches)	76%	very high
April Weather	26°C (78°F)	42 mm (1.7 inches)	77%	extreme
May Weather	29°C (84°F)	64 mm (2.5 inches)	80%	extreme
June Weather	30°C (87°F)	63 mm (2.5 inches)	73%	extreme
July Weather	31°C (88°F)	67 mm (2.6 inches)	66%	extreme
August Weather	32°C (90°F)	14 mm (0.6 inches)	65%	extreme
September Weather	29°C (85°F)	117 mm (4.6 inches)	73%	extreme
October Weather	25°C (77°F)	37 mm (1.5 inches)	76%	very high
November Weather	20°C (68°F)	35 mm (1.4 inches)	80%	high
December Weather	17°C (64°F)	17 mm (0.7 inches)	86%	high