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September Weather in San Marcos Zacatepec, Mexico

Last updated: August 27, 2025

In San Marcos Zacatepec, Mexico, the average temperature in September hovers around 22°C (71°F), offering a pleasant climate. Expect a minimum of 15°C (60°F) and a maximum of 30°C (87°F), making it ideal for various outdoor activities. However, with 534 mm (21.0 in) of precipitation spread over 29 days, it’s wise to pack an umbrella! The average humidity sits at a tropical 84%, adding to the warm, inviting atmosphere of the region.

September Temperature in San Marcos Zacatepec

In September, in San Marcos Zacatepec, the average temperature is 22°C (71°F). The maximum can reach 30°C (87°F) and the minimum can be as low as 15°C (60°F). This pleasant climate makes San Marcos Zacatepec an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

September Weather in San Marcos Zacatepec: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Marcos Zacatepec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Marcos Zacatepec, September typically has an average temperature of 22°C (71°F), with highs reaching up to 30°C (87°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec687072737371717171717068
Data source: Temperature data for San Marcos Zacatepec generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in San Marcos Zacatepec

In San Marcos Zacatepec in September, the total precipitation amount is 534 mm (21.0 in) spread over 29 days.

September Precipitation Trends in San Marcos Zacatepec

The chart displays monthly precipitation patterns in San Marcos Zacatepec, 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 San Marcos Zacatepec, September typically receives around 534 mm (21.0 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec16715321924103375135343394718
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Marcos Zacatepec

In San Marcos Zacatepec in September, humidity is 84%. With an average temperature of 22°C (71°F), this humidity feels like a warm, sticky blanket wrapping around you, making outdoor activities a bit challenging but also inviting you to seek out shaded spots and cool refreshments during your travels.

September Average Humidity in San Marcos Zacatepec

This chart illustrates the average monthly humidity levels in San Marcos Zacatepec, 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 San Marcos Zacatepec is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%80%73%67%72%73%76%80%84%89%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Marcos Zacatepec

In San Marcos Zacatepec 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 San Marcos Zacatepec, you can check here.

Maximum UV Index Levels in San Marcos Zacatepec for September

The chart shows the monthly maximum UV Index (UVI) for San Marcos Zacatepec 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 San Marcos Zacatepec typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10131415151414141412109
Data source: San Marcos Zacatepec 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 San Marcos Zacatepec Compares to Other Months

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

This table compares monthly weather conditions in San Marcos Zacatepec, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (69°F)16 mm (0.6 inches)84%very high
February Weather21°C (70°F)7 mm (0.3 inches)80%extreme
March Weather22°C (72°F)15 mm (0.6 inches)73%extreme
April Weather23°C (73°F)32 mm (1.3 inches)67%extreme
May Weather23°C (73°F)192 mm (7.6 inches)72%extreme
June Weather22°C (72°F)410 mm (16.1 inches)73%extreme
July Weather22°C (72°F)337 mm (13.3 inches)76%extreme
August Weather22°C (71°F)513 mm (20.2 inches)80%extreme
September Weather22°C (71°F)534 mm (21.0 inches)84%extreme
October Weather21°C (71°F)339 mm (13.4 inches)89%extreme
November Weather21°C (70°F)47 mm (1.8 inches)88%very high
December Weather20°C (69°F)18 mm (0.7 inches)88%very high

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