September Weather in Coatlancillo, Mexico

Last updated: August 27, 2025

In Coatlancillo, Mexico, the average temperature in September is a pleasant 21°C (70°F), making it an ideal time to explore. Expect a minimum temperature of 15°C (59°F) and a maximum of 30°C (87°F), offering mild to warm days. However, be prepared for 270 mm (10.6 in) of precipitation over 26 days, so you might want to pack an umbrella! With an average humidity of 83%, the air can feel quite moist, adding to the lush beauty of the region.

September Temperature in Coatlancillo

In September in Coatlancillo, the average temperature is 21°C (70°F), with maximums reaching 30°C (87°F) and minimums dropping as low as 15°C (59°F). This pleasant weather makes it an ideal time for outdoor activities and sightseeing in Coatlancillo.

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

The chart illustrates September temperature patterns in Coatlancillo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Coatlancillo, September typically has an average temperature of 21°C (70°F), with highs reaching up to 30°C (87°F) and lows dropping to around 15°C (59°F).

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

September Precipitation in Coatlancillo

In Coatlancillo in September, the precipitation amount is 270 mm (10.6 in) spread over 26 days.

September Precipitation Trends in Coatlancillo

The chart displays monthly precipitation patterns in Coatlancillo, 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 Coatlancillo, September typically receives around 270 mm (10.6 inches) of precipitation spread over approximately 26 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 Coatlancillo

In Coatlancillo in September humidity is 83%. With an average temperature of 21°C (70°F), this humidity feels like you’re enveloped in a warm, tropical embrace, making it essential to stay hydrated and take breaks during your travels.

September Average Humidity in Coatlancillo

This chart illustrates the average monthly humidity levels in Coatlancillo, 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 Coatlancillo is approximately 83%, 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 Coatlancillo

In Coatlancillo 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 Coatlancillo, you can check here.

Maximum UV Index Levels in Coatlancillo for September

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

Data source: Coatlancillo 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 Coatlancillo Compares to Other Months

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

This table compares monthly weather conditions in Coatlancillo, 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 (64°F)	6 mm (0.2 inches)	70%	very high
February Weather	19°C (66°F)	14 mm (0.6 inches)	65%	extreme
March Weather	21°C (70°F)	2 mm (0.1 inches)	59%	extreme
April Weather	22°C (72°F)	1 mm (0.0 inches)	60%	extreme
May Weather	23°C (74°F)	24 mm (0.9 inches)	67%	extreme
June Weather	22°C (73°F)	165 mm (6.5 inches)	80%	extreme
July Weather	21°C (70°F)	247 mm (9.7 inches)	81%	extreme
August Weather	21°C (70°F)	292 mm (11.5 inches)	83%	extreme
September Weather	21°C (70°F)	270 mm (10.6 inches)	83%	extreme
October Weather	21°C (69°F)	116 mm (4.6 inches)	80%	extreme
November Weather	19°C (67°F)	24 mm (0.9 inches)	77%	very high
December Weather	17°C (64°F)	9 mm (0.4 inches)	76%	very high