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September Weather in Santiago Tenango, Mexico

Last updated: August 27, 2025

In September, the average temperature in Santiago Tenango, Mexico hovers around 18°C (65°F). Expect a minimum temperature of 10°C (51°F) and a maximum reaching up to 28°C (82°F). Prepare for some damp days, as precipitation can total 258 mm (10.2 in) over 24 days, with the air maintaining a relatively high average humidity of 84%.

September Temperature in Santiago Tenango

In September in Santiago Tenango, the average temperature is 18°C (65°F). Maximums can reach 28°C (82°F) and minimums can be as low as 10°C (51°F). This mild climate makes Santiago Tenango an ideal destination for travelers seeking outdoor adventures and pleasant sightseeing.

September Weather in Santiago Tenango: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santiago Tenango, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago Tenango, 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 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec596365676865646464636159
Data source: Temperature data for Santiago Tenango 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 Santiago Tenango

In Santiago Tenango in September, the precipitation amount is 258 mm (10.2 in) over a period of 24 days.

September Precipitation Trends in Santiago Tenango

The chart displays monthly precipitation patterns in Santiago Tenango, 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 Santiago Tenango, September typically receives around 258 mm (10.2 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec73123868247126228258131186
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santiago Tenango

In Santiago Tenango in September, humidity is 84%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and slightly uncomfortable as the air clings to your skin and limits your breath.

September Average Humidity in Santiago Tenango

This chart illustrates the average monthly humidity levels in Santiago Tenango, 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 Santiago Tenango 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 Santiago Tenango

In Santiago Tenango 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 Santiago Tenango, you can check here.

Maximum UV Index Levels in Santiago Tenango for September

The chart shows the monthly maximum UV Index (UVI) for Santiago Tenango 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 Santiago Tenango typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11131515151515141413119
Data source: Santiago Tenango 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 Santiago Tenango Compares to Other Months

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

This table compares monthly weather conditions in Santiago Tenango, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)7 mm (0.3 inches)84%extreme
February Weather17°C (63°F)3 mm (0.1 inches)80%extreme
March Weather18°C (65°F)12 mm (0.5 inches)73%extreme
April Weather20°C (67°F)38 mm (1.5 inches)67%extreme
May Weather20°C (68°F)68 mm (2.7 inches)72%extreme
June Weather19°C (66°F)247 mm (9.7 inches)73%extreme
July Weather18°C (65°F)126 mm (5.0 inches)76%extreme
August Weather18°C (65°F)228 mm (9.0 inches)80%extreme
September Weather18°C (65°F)258 mm (10.2 inches)84%extreme
October Weather17°C (64°F)131 mm (5.2 inches)89%extreme
November Weather16°C (61°F)18 mm (0.7 inches)88%extreme
December Weather15°C (60°F)6 mm (0.2 inches)88%very high

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