September Weather in Montecillos, Mexico

Last updated: August 27, 2025

The average temperature in Montecillos, Mexico for the month of September is 17°C (62°F). During this time, temperatures can range from a minimum of 6°C (44°F) to a maximum of 26°C (78°F). Expect substantial precipitation, averaging 212 mm (8.3 in) over 24 days, along with an average humidity level of a high 84%.

September Temperature in Montecillos

In September in Montecillos, the average temperature is 17°C (62°F). Maximum can reach 26°C (78°F) and minimum can be as low as 6°C (44°F). This mild climate makes Montecillos an ideal destination for travelers seeking comfortable weather.

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

The chart illustrates September temperature patterns in Montecillos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montecillos, September typically has an average temperature of 17°C (62°F), with highs reaching up to 26°C (78°F) and lows dropping to around 6°C (44°F).

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

September Precipitation in Montecillos

In Montecillos in September, the precipitation amount is 212 mm (8.3 in) during 24 days, indicating a period of frequent rainfall.

September Precipitation Trends in Montecillos

The chart displays monthly precipitation patterns in Montecillos, 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 Montecillos, September typically receives around 212 mm (8.3 inches) of precipitation spread over approximately 24 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 Montecillos

In Montecillos in September humidity is 84%. With an average temperature of 17°C (62°F), this humidity feels like a warm blanket enveloping you, making travel both comforting and slightly stifling, as you navigate through a haze of thick, moisture-laden air.

September Average Humidity in Montecillos

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

In Montecillos 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 Montecillos.

Maximum UV Index Levels in Montecillos for September

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

Data source: Montecillos 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 Montecillos Compares to Other Months

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

This table compares monthly weather conditions in Montecillos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (53°F)	26 mm (1.0 inches)	88%	very high
February Weather	13°C (57°F)	25 mm (1.0 inches)	86%	extreme
March Weather	15°C (60°F)	40 mm (1.6 inches)	83%	extreme
April Weather	17°C (63°F)	57 mm (2.2 inches)	80%	extreme
May Weather	18°C (65°F)	87 mm (3.4 inches)	82%	extreme
June Weather	17°C (64°F)	187 mm (7.4 inches)	79%	extreme
July Weather	17°C (63°F)	145 mm (5.7 inches)	72%	extreme
August Weather	17°C (63°F)	189 mm (7.4 inches)	74%	extreme
September Weather	17°C (62°F)	212 mm (8.3 inches)	84%	extreme
October Weather	15°C (60°F)	163 mm (6.4 inches)	92%	extreme
November Weather	13°C (56°F)	51 mm (2.0 inches)	91%	very high
December Weather	12°C (54°F)	18 mm (0.7 inches)	91%	very high