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September Weather in Santiago Ixtlahuaca, Mexico

Last updated: August 27, 2025

In Santiago Ixtlahuaca, Mexico, the average temperature in September is a comfortable 19°C (66°F). Visitors can expect a range from a cool 7°C (46°F) to a warm 29°C (84°F). However, be prepared for some wet weather, as the area receives about 124 mm (4.9 inches) of precipitation over 20 days. With an average humidity of 84%, it's advisable to pack for both warmth and moisture.

September Temperature in Santiago Ixtlahuaca

In September in Santiago Ixtlahuaca, the average temperature is 19°C (66°F). Maximum temperatures can reach 29°C (84°F), while minimums can drop to as low as 7°C (46°F). This pleasant weather makes Santiago Ixtlahuaca an ideal destination for travelers seeking both warmth and cooler evenings.

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

The chart illustrates September temperature patterns in Santiago Ixtlahuaca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago Ixtlahuaca, September typically has an average temperature of 19°C (66°F), with highs reaching up to 29°C (84°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec566164687068666765635957
Data source: Temperature data for Santiago Ixtlahuaca 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 Ixtlahuaca

In Santiago Ixtlahuaca, in September, the precipitation amount is 124 mm (4.9 in) over the course of 20 days.

September Precipitation Trends in Santiago Ixtlahuaca

The chart displays monthly precipitation patterns in Santiago Ixtlahuaca, 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 Ixtlahuaca, September typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec1113193149122989412472257
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santiago Ixtlahuaca

In Santiago Ixtlahuaca in September, humidity is 84%. With an average temperature of 19°C (66°F), this humidity feels like a warm, sticky embrace that can make traveling uncomfortable and exhausting, as the air clings to your skin, and every step taken feels heavier in the sultry atmosphere.

September Average Humidity in Santiago Ixtlahuaca

This chart illustrates the average monthly humidity levels in Santiago Ixtlahuaca, 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 Ixtlahuaca is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santiago Ixtlahuaca

In Santiago Ixtlahuaca 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 Ixtlahuaca, you can check here.

Maximum UV Index Levels in Santiago Ixtlahuaca for September

The chart shows the monthly maximum UV Index (UVI) for Santiago Ixtlahuaca 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 Ixtlahuaca typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111414151415141412108
Data source: Santiago Ixtlahuaca 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 Ixtlahuaca Compares to Other Months

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

This table compares monthly weather conditions in Santiago Ixtlahuaca, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (56°F)11 mm (0.4 inches)88%very high
February Weather16°C (61°F)13 mm (0.5 inches)86%extreme
March Weather18°C (64°F)19 mm (0.7 inches)83%extreme
April Weather20°C (68°F)31 mm (1.2 inches)80%extreme
May Weather21°C (70°F)49 mm (1.9 inches)82%extreme
June Weather20°C (68°F)122 mm (4.8 inches)79%extreme
July Weather19°C (66°F)98 mm (3.9 inches)72%extreme
August Weather19°C (67°F)94 mm (3.7 inches)74%extreme
September Weather19°C (66°F)124 mm (4.9 inches)84%extreme
October Weather17°C (63°F)72 mm (2.8 inches)92%extreme
November Weather15°C (59°F)25 mm (1.0 inches)91%very high
December Weather14°C (57°F)7 mm (0.3 inches)91%very high

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