September Weather in Ahuatlan, Mexico

Last updated: August 27, 2025

In September, the average temperature in Ahuatlan, Mexico hovers around 21°C (70°F), with minimums dipping to 16°C (61°F) and maximums reaching up to 29°C (84°F). Expect 180 mm (7.1 in) of precipitation spread over 23 days, contributing to an average humidity level of 84%. 🌧️

September Temperature in Ahuatlan

In September in Ahuatlan, the average temperature is 21°C (70°F). The maximum can reach 29°C (84°F), while the minimum can drop as low as 16°C (61°F). This makes it an ideal time for travelers seeking pleasant and mild weather.

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

The chart illustrates September temperature patterns in Ahuatlan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ahuatlan, September typically has an average temperature of 21°C (70°F), with highs reaching up to 29°C (84°F) and lows dropping to around 16°C (61°F).

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

September Precipitation in Ahuatlan

In Ahuatlan in September, the precipitation amount is 180 mm (7.1 in) over the course of 23 days.

September Precipitation Trends in Ahuatlan

The chart displays monthly precipitation patterns in Ahuatlan, 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 Ahuatlan, September typically receives around 180 mm (7.1 inches) of precipitation spread over approximately 23 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 Ahuatlan

In Ahuatlan 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 Ahuatlan

This chart illustrates the average monthly humidity levels in Ahuatlan, 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 Ahuatlan 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 Ahuatlan

In Ahuatlan 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 Ahuatlan, you can check here.

Maximum UV Index Levels in Ahuatlan for September

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

Data source: Ahuatlan 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 Ahuatlan Compares to Other Months

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

This table compares monthly weather conditions in Ahuatlan, 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 (0.3 inches)	64%	very high
February Weather	19°C (66°F)	10 mm (0.4 inches)	57%	extreme
March Weather	22°C (71°F)	3 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)	24 mm (0.9 inches)	51%	extreme
June Weather	23°C (74°F)	116 mm (4.6 inches)	74%	extreme
July Weather	22°C (71°F)	194 mm (7.6 inches)	79%	extreme
August Weather	22°C (71°F)	191 mm (7.5 inches)	81%	extreme
September Weather	21°C (70°F)	180 mm (7.1 inches)	84%	extreme
October Weather	21°C (70°F)	62 mm (2.5 inches)	75%	extreme
November Weather	19°C (66°F)	19 mm (0.8 inches)	71%	very high
December Weather	17°C (63°F)	5 mm (0.2 inches)	74%	very high