September Weather in Pacho Viejo, Mexico

Last updated: August 27, 2025

In September, the average temperature in Pacho Viejo, Mexico is a pleasant 19°C (66°F). Expect fluctuations, with minimums dropping to 11°C (51°F) and maximums climbing to 27°C (81°F). However, be prepared for 211 mm (8.3 inches) of precipitation spread over 25 days, contributing to an average humidity level of 86%.

September Temperature in Pacho Viejo

In September in Pacho Viejo, the average temperature is 19°C (66°F). Maximum temperatures can reach 27°C (81°F), while the minimum can drop to as low as 11°C (51°F). It's a perfect time for travelers to enjoy mild weather, making it ideal for outdoor activities and sightseeing.

September Weather in Pacho Viejo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Pacho Viejo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pacho Viejo, September typically has an average temperature of 19°C (66°F), with highs reaching up to 27°C (81°F) and lows dropping to around 11°C (51°F).

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

September Precipitation in Pacho Viejo

In Pacho Viejo in September, the total precipitation amount reaches 211 mm (8.3 in) over the course of 25 days.

September Precipitation Trends in Pacho Viejo

The chart displays monthly precipitation patterns in Pacho Viejo, 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 Pacho Viejo, September typically receives around 211 mm (8.3 inches) of precipitation spread over approximately 25 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 Pacho Viejo

In Pacho Viejo in September, humidity is 86%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket enveloping you, making travel slightly uncomfortable as the air feels heavy and sticking to your skin.

September Average Humidity in Pacho Viejo

This chart illustrates the average monthly humidity levels in Pacho Viejo, 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 Pacho Viejo is approximately 86%, 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 Pacho Viejo

In Pacho Viejo 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 Pacho Viejo, you can check here.

Maximum UV Index Levels in Pacho Viejo for September

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

Data source: Pacho Viejo 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 Pacho Viejo Compares to Other Months

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

This table compares monthly weather conditions in Pacho Viejo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	57 mm (2.3 inches)	88%	very high
February Weather	15°C (59°F)	46 mm (1.8 inches)	86%	extreme
March Weather	16°C (61°F)	75 mm (2.9 inches)	84%	extreme
April Weather	18°C (65°F)	114 mm (4.5 inches)	81%	extreme
May Weather	19°C (67°F)	181 mm (7.1 inches)	82%	extreme
June Weather	19°C (66°F)	215 mm (8.5 inches)	81%	extreme
July Weather	18°C (65°F)	114 mm (4.5 inches)	81%	extreme
August Weather	19°C (66°F)	166 mm (6.5 inches)	82%	extreme
September Weather	19°C (66°F)	211 mm (8.3 inches)	86%	extreme
October Weather	18°C (64°F)	144 mm (5.7 inches)	90%	extreme
November Weather	15°C (60°F)	67 mm (2.6 inches)	91%	very high
December Weather	14°C (57°F)	35 mm (1.4 inches)	91%	very high