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September Weather in Santiago Lachivia, Mexico

Last updated: August 27, 2025

In Santiago Lachivia, Mexico, the average temperature in September is a pleasant 18°C (64°F). Expect fluctuations with minimums dipping to 11°C (52°F) and soaring to a maximum of 27°C (80°F). Be prepared for a good amount of rain, as 578 mm (22.8 in) of precipitation is typical over the 28 days of the month. Additionally, the air tends to be quite humid, with an average humidity level of 84%.

September Temperature in Santiago Lachivia

In September in Santiago Lachivia, the average temperature is 18°C (64°F). Maximums can reach 27°C (80°F) and minimums can be as low as 11°C (52°F). This mild climate makes it an ideal time for exploring the sights and enjoying outdoor activities.

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

The chart illustrates September temperature patterns in Santiago Lachivia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago Lachivia, September typically has an average temperature of 18°C (64°F), with highs reaching up to 27°C (80°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec596164656664646464636160
Data source: Temperature data for Santiago Lachivia 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 Lachivia

In Santiago Lachivia in September, the total precipitation amount is 578 mm (22.8 in) over the course of 28 days.

September Precipitation Trends in Santiago Lachivia

The chart displays monthly precipitation patterns in Santiago Lachivia, 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 Lachivia, September typically receives around 578 mm (22.8 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec1712311635367414816185782802618
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santiago Lachivia

In Santiago Lachivia in September humidity is 84%. With an average temperature of 18°C (64°F), this humidity feels like there's a heavy blanket wrapping around you, making travel feel a bit sticky and muggy, potentially leading to fatigue if you're not prepared.

September Average Humidity in Santiago Lachivia

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

In Santiago Lachivia in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Santiago Lachivia.

Maximum UV Index Levels in Santiago Lachivia for September

The chart shows the monthly maximum UV Index (UVI) for Santiago Lachivia 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 Lachivia typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111315151515151415131110
Data source: Santiago Lachivia 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 Lachivia Compares to Other Months

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

This table compares monthly weather conditions in Santiago Lachivia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)17 mm (0.7 inches)84%extreme
February Weather16°C (62°F)12 mm (0.5 inches)80%extreme
March Weather18°C (64°F)31 mm (1.2 inches)73%extreme
April Weather18°C (65°F)163 mm (6.4 inches)67%extreme
May Weather19°C (66°F)536 mm (21.1 inches)72%extreme
June Weather18°C (65°F)741 mm (29.2 inches)73%extreme
July Weather18°C (64°F)481 mm (19.0 inches)76%extreme
August Weather18°C (64°F)618 mm (24.3 inches)80%extreme
September Weather18°C (64°F)578 mm (22.8 inches)84%extreme
October Weather17°C (64°F)280 mm (11.0 inches)89%extreme
November Weather16°C (61°F)26 mm (1.0 inches)88%extreme
December Weather15°C (60°F)17 mm (0.7 inches)88%very high

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