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September Weather in Santa Monica Autempa, Mexico

Last updated: August 27, 2025

In September, the average temperature in Santa Monica Autempa, Mexico hovers around 18°C (65°F). Expect a minimum drop to 7°C (45°F) and a potential peak of 28°C (82°F). Be prepared for rain, as precipitation averages 180 mm (7.1 in) over 23 days. With an average humidity of 84%, it's a season of warmth and wetness!

September Temperature in Santa Monica Autempa

In September in Santa Monica Autempa, the average temperature is 18°C (65°F). Maximums can reach 28°C (82°F), and minimums can be as low as 7°C (45°F). This range makes Santa Monica Autempa a pleasant destination for travelers seeking mild weather and comfortable conditions.

September Weather in Santa Monica Autempa: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santa Monica Autempa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Monica Autempa, 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 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec555962666967666665635856
Data source: Temperature data for Santa Monica Autempa 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 Santa Monica Autempa

In Santa Monica Autempa in September, the precipitation amount is 180 mm (7.1 in) over the course of 23 days.

September Precipitation Trends in Santa Monica Autempa

The chart displays monthly precipitation patterns in Santa Monica Autempa, 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 Santa Monica Autempa, September typically receives around 180 mm (7.1 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec21192650711481371491801514512
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santa Monica Autempa

In Santa Monica Autempa 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 Santa Monica Autempa

This chart illustrates the average monthly humidity levels in Santa Monica Autempa, 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 Santa Monica Autempa 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 Santa Monica Autempa

In Santa Monica Autempa 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 Santa Monica Autempa, you can check here.

Maximum UV Index Levels in Santa Monica Autempa for September

The chart shows the monthly maximum UV Index (UVI) for Santa Monica Autempa 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 Santa Monica Autempa typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111414151414141412108
Data source: Santa Monica Autempa 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 Santa Monica Autempa Compares to Other Months

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

This table compares monthly weather conditions in Santa Monica Autempa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)21 mm (0.8 inches)88%very high
February Weather15°C (59°F)19 mm (0.7 inches)86%extreme
March Weather17°C (62°F)26 mm (1.0 inches)83%extreme
April Weather19°C (67°F)50 mm (2.0 inches)80%extreme
May Weather20°C (69°F)71 mm (2.8 inches)82%extreme
June Weather19°C (67°F)148 mm (5.8 inches)79%extreme
July Weather19°C (66°F)137 mm (5.4 inches)72%extreme
August Weather19°C (66°F)149 mm (5.9 inches)74%extreme
September Weather18°C (65°F)180 mm (7.1 inches)84%extreme
October Weather17°C (63°F)151 mm (6.0 inches)92%extreme
November Weather15°C (59°F)45 mm (1.8 inches)91%very high
December Weather13°C (56°F)12 mm (0.5 inches)91%very high

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