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September Weather in Zapotitlan, Mexico

Last updated: August 27, 2025

In Zapotitlan, Mexico, the average temperature in September hovers around 20°C (68°F). Expect a pleasant range, with minimums of 12°C (53°F) and maximums reaching up to 30°C (87°F). However, be prepared for 145 mm (5.7 in) of precipitation spread over 16 days, contributing to an average humidity of 82%. It's a month that calls for both sun and rain gear!

September Temperature in Zapotitlan

In September in Zapotitlan, the average temperature is 20°C (68°F). Maximum temperatures can reach 30°C (87°F), while minimum temperatures can drop to as low as 12°C (53°F). This mild climate makes it an ideal time to explore the beautiful surroundings and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Zapotitlan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Zapotitlan, September typically has an average temperature of 20°C (68°F), with highs reaching up to 30°C (87°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec606466707168686868666361
Data source: Temperature data for Zapotitlan 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 Zapotitlan

In Zapotitlan in September, the precipitation amount is 145 mm (5.7 in) spread over 16 days, indicating a moderately wet period for the region.

September Precipitation Trends in Zapotitlan

The chart displays monthly precipitation patterns in Zapotitlan, 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 Zapotitlan, September typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec54113484160638914562113
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Zapotitlan

In Zapotitlan in September humidity is 82%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit sluggish but surprisingly refreshing, as long as you take breaks in shaded areas to cool off.

September Average Humidity in Zapotitlan

This chart illustrates the average monthly humidity levels in Zapotitlan, 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 Zapotitlan is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Zapotitlan

In Zapotitlan 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 Zapotitlan, you can check here.

Maximum UV Index Levels in Zapotitlan for September

The chart shows the monthly maximum UV Index (UVI) for Zapotitlan 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 Zapotitlan typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121415151515141412109
Data source: Zapotitlan 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 Zapotitlan Compares to Other Months

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

This table compares monthly weather conditions in Zapotitlan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (60°F)5 mm (0.2 inches)84%very high
February Weather18°C (64°F)4 mm (0.1 inches)78%extreme
March Weather19°C (66°F)11 mm (0.4 inches)75%extreme
April Weather21°C (70°F)34 mm (1.3 inches)70%extreme
May Weather22°C (71°F)83 mm (3.3 inches)77%extreme
June Weather20°C (68°F)160 mm (6.3 inches)76%extreme
July Weather20°C (68°F)63 mm (2.5 inches)68%extreme
August Weather20°C (69°F)89 mm (3.5 inches)70%extreme
September Weather20°C (68°F)145 mm (5.7 inches)82%extreme
October Weather19°C (67°F)62 mm (2.4 inches)91%extreme
November Weather17°C (63°F)11 mm (0.4 inches)89%very high
December Weather16°C (61°F)3 mm (0.1 inches)88%very high

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