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September Weather in San Agustin Atenango, Mexico

Last updated: August 27, 2025

In San Agustin Atenango, Mexico, the average temperature in September is a comfortable 18°C (65°F), with a minimum dipping to 11°C (53°F) and a maximum reaching 28°C (82°F). Expect a substantial precipitation of 355 mm (14.0 in) spread over 28 days, contributing to an average humidity level of 82%. Bundle up for those chillier days, and be ready for the occasional rain!

September Temperature in San Agustin Atenango

In September in San Agustin Atenango, the average temperature is 18°C (65°F), with maximums reaching up to 28°C (82°F) and minimums dropping as low as 11°C (53°F). This makes it an ideal time for travelers to enjoy mild weather and outdoor activities.

September Weather in San Agustin Atenango: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Agustin Atenango, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Agustin Atenango, September typically has an average temperature of 18°C (65°F), with highs reaching up to 28°C (82°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec616466686967656565656361
Data source: Temperature data for San Agustin Atenango 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 Agustin Atenango

In San Agustin Atenango in September, the total precipitation amount is 355 mm (14.0 in) spread over a period of 28 days.

September Precipitation Trends in San Agustin Atenango

The chart displays monthly precipitation patterns in San Agustin Atenango, 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 Agustin Atenango, September typically receives around 355 mm (14.0 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec1231428108274223287355155318
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Agustin Atenango

In San Agustin Atenango in September, humidity is 82%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can quickly leave travelers feeling fatigued and in need of frequent breaks to stay refreshed and hydrated.

September Average Humidity in San Agustin Atenango

This chart illustrates the average monthly humidity levels in San Agustin Atenango, 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 Agustin Atenango is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%61%59%62%73%78%79%82%82%79%72%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Agustin Atenango

In San Agustin Atenango 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 Agustin Atenango, you can check here.

Maximum UV Index Levels in San Agustin Atenango for September

The chart shows the monthly maximum UV Index (UVI) for San Agustin Atenango 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 Agustin Atenango typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10131415151515141413109
Data source: San Agustin Atenango 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 Agustin Atenango Compares to Other Months

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

This table compares monthly weather conditions in San Agustin Atenango, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (61°F)12 mm (0.5 inches)65%very high
February Weather18°C (64°F)3 mm (0.1 inches)61%extreme
March Weather19°C (67°F)14 mm (0.6 inches)59%extreme
April Weather20°C (69°F)28 mm (1.1 inches)62%extreme
May Weather21°C (69°F)108 mm (4.2 inches)73%extreme
June Weather19°C (67°F)274 mm (10.8 inches)78%extreme
July Weather19°C (66°F)223 mm (8.8 inches)79%extreme
August Weather18°C (66°F)287 mm (11.3 inches)82%extreme
September Weather18°C (65°F)355 mm (14.0 inches)82%extreme
October Weather18°C (65°F)155 mm (6.1 inches)79%extreme
November Weather17°C (63°F)30 mm (1.2 inches)72%very high
December Weather16°C (62°F)8 mm (0.3 inches)70%very high

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