September Weather in Cerro Grande, Mexico

Last updated: August 27, 2025

In September, the average temperature in Cerro Grande, Mexico hovers around 28°C (83°F), with minimums dropping to 25°C (77°F) and soaring to a maximum of 34°C (93°F). Expect 289 mm (11.4 in) of precipitation over the course of 22 days, and a high average humidity level of 87%. Embrace the tropical vibe, but don’t forget your umbrella!

September Temperature in Cerro Grande

In September in Cerro Grande, the average temperature is 28°C (83°F). Maximums can reach 34°C (93°F), and minimums can be as low as 25°C (77°F). This warm climate makes Cerro Grande an ideal destination for travelers seeking sunny weather and outdoor adventures.

September Weather in Cerro Grande: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cerro Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cerro Grande, September typically has an average temperature of 28°C (83°F), with highs reaching up to 34°C (93°F) and lows dropping to around 25°C (77°F).

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

September Precipitation in Cerro Grande

In Cerro Grande in September, the precipitation amount is 289 mm (11.4 in), occurring over a span of 22 days.

September Precipitation Trends in Cerro Grande

The chart displays monthly precipitation patterns in Cerro Grande, 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 Cerro Grande, September typically receives around 289 mm (11.4 inches) of precipitation spread over approximately 22 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 Cerro Grande

In Cerro Grande in September humidity is 87%. With an average temperature of 28°C (83°F), this humidity feels like you're enveloped in a warm, sticky blanket, making outdoor activities slightly uncomfortable and travel plans require frequent breaks for hydration and respite from the heat.

September Average Humidity in Cerro Grande

This chart illustrates the average monthly humidity levels in Cerro Grande, 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 Cerro Grande is approximately 87%, 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 Cerro Grande

In Cerro Grande 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 Cerro Grande.

Maximum UV Index Levels in Cerro Grande for September

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

Data source: Cerro Grande 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 Cerro Grande Compares to Other Months

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

This table compares monthly weather conditions in Cerro Grande, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (78°F)	8 mm (0.3 inches)	83%	very high
February Weather	26°C (79°F)	13 mm (0.5 inches)	76%	extreme
March Weather	27°C (81°F)	11 mm (0.4 inches)	66%	extreme
April Weather	28°C (83°F)	31 mm (1.2 inches)	59%	extreme
May Weather	29°C (84°F)	113 mm (4.5 inches)	64%	extreme
June Weather	28°C (83°F)	443 mm (17.4 inches)	69%	extreme
July Weather	29°C (84°F)	115 mm (4.5 inches)	82%	extreme
August Weather	28°C (83°F)	250 mm (9.9 inches)	87%	extreme
September Weather	28°C (83°F)	289 mm (11.4 inches)	87%	extreme
October Weather	28°C (82°F)	216 mm (8.5 inches)	88%	extreme
November Weather	27°C (81°F)	7 mm (0.3 inches)	88%	very high
December Weather	26°C (79°F)	11 mm (0.4 inches)	88%	very high