September Weather in Allende, Mexico

Last updated: August 27, 2025

In Allende, Mexico, the average temperature in September hovers around 19°C (66°F). Expect mild nights with minimums dipping to 11°C (52°F), while daytime temperatures can reach up to 29°C (84°F). This month brings a fair share of rain, with an average precipitation of 189 mm (7.4 in) over 21 days. Coupled with an average humidity of 81%, it creates a vibrant, lush atmosphere perfect for experiencing all that this locale has to offer!

September Temperature in Allende

In September in Allende, the average temperature is 19°C (66°F). The maximum can reach 29°C (84°F), while the minimum can be as low as 11°C (52°F). This pleasant temperature range makes Allende an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

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

The chart illustrates September temperature patterns in Allende, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Allende, September typically has an average temperature of 19°C (66°F), with highs reaching up to 29°C (84°F) and lows dropping to around 11°C (52°F).

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

September Precipitation in Allende

In Allende in September, the total precipitation amount is 189 mm (7.4 in), spread over a period of 21 days.

September Precipitation Trends in Allende

The chart displays monthly precipitation patterns in Allende, 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 Allende, September typically receives around 189 mm (7.4 inches) of precipitation spread over approximately 21 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 Allende

In Allende in September, humidity is 81%. With an average temperature of 19°C (66°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel both muggy and slightly stifling, often leading to a need for frequent breaks in the shade.

September Average Humidity in Allende

This chart illustrates the average monthly humidity levels in Allende, 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 Allende is approximately 81%, 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 Allende

In Allende 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 Allende.

Maximum UV Index Levels in Allende for September

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

Data source: Allende 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 Allende Compares to Other Months

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

This table compares monthly weather conditions in Allende, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	15°C (59°F)	8 mm (0.3 inches)	74%	very high
February Weather	17°C (63°F)	8 mm (0.3 inches)	65%	extreme
March Weather	20°C (68°F)	10 mm (0.4 inches)	58%	extreme
April Weather	22°C (72°F)	4 mm (0.2 inches)	58%	extreme
May Weather	23°C (73°F)	49 mm (1.9 inches)	67%	extreme
June Weather	21°C (71°F)	177 mm (7.0 inches)	76%	extreme
July Weather	19°C (67°F)	231 mm (9.1 inches)	67%	extreme
August Weather	20°C (67°F)	184 mm (7.3 inches)	68%	extreme
September Weather	19°C (66°F)	189 mm (7.4 inches)	81%	extreme
October Weather	19°C (66°F)	69 mm (2.7 inches)	83%	extreme
November Weather	17°C (62°F)	22 mm (0.9 inches)	84%	very high
December Weather	15°C (59°F)	5 mm (0.2 inches)	81%	very high