September Weather in Altamirano, Mexico

Last updated: August 27, 2025

In September, the average temperature in Altamirano, Mexico hovers around 20°C (69°F), with minimum temperatures dipping to 14°C (58°F) and maximums reaching up to 29°C (84°F). Expect a fair amount of rain, with 198 mm (7.8 in) of precipitation spread over 23 days. The air is quite humid, averaging around 77%, making it a characteristic feature of the season.

September Temperature in Altamirano

In September in Altamirano, the average temperature is 20°C (69°F). Maximums can reach 29°C (84°F), while minimums can drop to as low as 14°C (58°F). This pleasant climate makes Altamirano an ideal destination for travelers seeking mild weather and comfortable outdoor activities.

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

The chart illustrates September temperature patterns in Altamirano, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altamirano, September typically has an average temperature of 20°C (69°F), with highs reaching up to 29°C (84°F) and lows dropping to around 14°C (58°F).

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

September Precipitation in Altamirano

In Altamirano in September, the precipitation amount is 198 mm (7.8 in) over the course of 23 days.

September Precipitation Trends in Altamirano

The chart displays monthly precipitation patterns in Altamirano, 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 Altamirano, September typically receives around 198 mm (7.8 inches) of precipitation spread over approximately 23 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Altamirano

In Altamirano in September, humidity is 77%. With an average temperature of 20°C (69°F), this humidity feels like a sultry embrace, making travel comfortable yet slightly sticky, as the moist air clings to your skin with every step you take.

September Average Humidity in Altamirano

This chart illustrates the average monthly humidity levels in Altamirano, 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 Altamirano is approximately 77%, 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 Altamirano

In Altamirano 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 Altamirano, you can check here.

Maximum UV Index Levels in Altamirano for September

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

Data source: Altamirano 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 Altamirano Compares to Other Months

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

This table compares monthly weather conditions in Altamirano, 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 (62°F)	66 mm (2.6 inches)	84%	very high
February Weather	17°C (64°F)	36 mm (1.4 inches)	73%	extreme
March Weather	19°C (66°F)	29 mm (1.2 inches)	59%	extreme
April Weather	21°C (70°F)	46 mm (1.8 inches)	52%	extreme
May Weather	22°C (72°F)	110 mm (4.3 inches)	53%	extreme
June Weather	21°C (70°F)	269 mm (10.6 inches)	55%	extreme
July Weather	20°C (69°F)	67 mm (2.6 inches)	61%	extreme
August Weather	21°C (70°F)	125 mm (4.9 inches)	71%	extreme
September Weather	20°C (69°F)	198 mm (7.8 inches)	77%	extreme
October Weather	20°C (68°F)	212 mm (8.4 inches)	78%	extreme
November Weather	18°C (65°F)	104 mm (4.1 inches)	82%	very high
December Weather	17°C (62°F)	59 mm (2.3 inches)	86%	very high