September Weather in Miahuatlan, Mexico

Last updated: August 26, 2025

In September, the average temperature in Miahuatlan, Mexico hovers around 18°C (66°F), with minimums dipping to 9°C (49°F) and reaching maximums of 29°C (84°F). Expect a precipitation total of 176 mm (6.9 in) spread over 20 days, accompanied by a notable average humidity of 82%.

September Temperature in Miahuatlan

In September in Miahuatlan, the average temperature is 18°C (66°F). Maximums can reach 29°C (84°F) and minimums can be as low as 9°C (49°F). This pleasant climate makes Miahuatlan an ideal destination for outdoor activities and exploration during this time of year.

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

The chart illustrates September temperature patterns in Miahuatlan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Miahuatlan, September typically has an average temperature of 18°C (66°F), with highs reaching up to 29°C (84°F) and lows dropping to around 9°C (49°F).

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

September Precipitation in Miahuatlan

In Miahuatlan in September, the precipitation amount is 176 mm (6.9 in) spread over the course of 20 days.

September Precipitation Trends in Miahuatlan

The chart displays monthly precipitation patterns in Miahuatlan, 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 Miahuatlan, September typically receives around 176 mm (6.9 inches) of precipitation spread over approximately 20 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 Miahuatlan

In Miahuatlan in September, humidity is 82%. With an average temperature of 18°C (66°F), this humidity feels like a warm blanket enveloping you, making travel feel both refreshing and slightly heavy, as you meander through the sights with a gentle sheen on your skin.

September Average Humidity in Miahuatlan

This chart illustrates the average monthly humidity levels in Miahuatlan, 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 Miahuatlan is approximately 82%, 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 Miahuatlan

In Miahuatlan 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 Miahuatlan, you can check here.

Maximum UV Index Levels in Miahuatlan for September

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

Data source: Miahuatlan 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 Miahuatlan Compares to Other Months

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

This table compares monthly weather conditions in Miahuatlan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (58°F)	6 mm (0.2 inches)	84%	very high
February Weather	16°C (62°F)	5 mm (0.2 inches)	78%	extreme
March Weather	17°C (64°F)	15 mm (0.6 inches)	75%	extreme
April Weather	19°C (67°F)	47 mm (1.8 inches)	70%	extreme
May Weather	20°C (68°F)	107 mm (4.2 inches)	77%	extreme
June Weather	19°C (66°F)	185 mm (7.3 inches)	76%	extreme
July Weather	18°C (65°F)	82 mm (3.2 inches)	68%	extreme
August Weather	19°C (66°F)	107 mm (4.2 inches)	70%	extreme
September Weather	18°C (66°F)	176 mm (6.9 inches)	82%	extreme
October Weather	18°C (64°F)	74 mm (2.9 inches)	91%	extreme
November Weather	16°C (61°F)	17 mm (0.7 inches)	89%	very high
December Weather	15°C (59°F)	3 mm (0.1 inches)	88%	very high