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September Weather in Santa Gertrudis, Mexico

Last updated: August 27, 2025

In September, the average temperature in Santa Gertrudis, Mexico hovers around 28°C (82°F), with a minimum of 22°C (71°F) and peaks reaching 37°C (98°F). Expect 128 mm (5.0 in) of precipitation over approximately 21 days, contributing to a high average humidity of 85%. Be prepared for a warm and humid month!

September Temperature in Santa Gertrudis

In September in Santa Gertrudis, the average temperature is 28°C (82°F). Maximum can reach 37°C (98°F) and minimum can be as low as 22°C (71°F). This pleasant climate makes Santa Gertrudis an ideal destination for travelers seeking warm and enjoyable weather.

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

The chart illustrates September temperature patterns in Santa Gertrudis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Gertrudis, September typically has an average temperature of 28°C (82°F), with highs reaching up to 37°C (98°F) and lows dropping to around 22°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec747880838482838382807775
Data source: Temperature data for Santa Gertrudis 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 Gertrudis

In Santa Gertrudis in September, the total precipitation amount is 128 mm (5.0 in), occurring over the course of 21 days.

September Precipitation Trends in Santa Gertrudis

The chart displays monthly precipitation patterns in Santa Gertrudis, 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 Gertrudis, September typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec301082654192681031281295325
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santa Gertrudis

In Santa Gertrudis in September humidity is 85%. With an average temperature of 28°C (82°F), this humidity feels like a warm blanket enveloping you, making outdoor activities a sweaty endeavor and requiring frequent breaks to stay refreshed.

September Average Humidity in Santa Gertrudis

This chart illustrates the average monthly humidity levels in Santa Gertrudis, 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 Gertrudis is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%80%69%64%63%62%65%78%86%87%88%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santa Gertrudis

In Santa Gertrudis in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Santa Gertrudis.

Maximum UV Index Levels in Santa Gertrudis for September

The chart shows the monthly maximum UV Index (UVI) for Santa Gertrudis 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 Gertrudis typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131313131312121198
Data source: Santa Gertrudis 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 Gertrudis Compares to Other Months

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

This table compares monthly weather conditions in Santa Gertrudis, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (75°F)30 mm (1.2 inches)85%very high
February Weather25°C (78°F)10 mm (0.4 inches)80%extreme
March Weather27°C (80°F)8 mm (0.3 inches)69%extreme
April Weather28°C (84°F)26 mm (1.0 inches)64%extreme
May Weather29°C (85°F)54 mm (2.1 inches)63%extreme
June Weather28°C (83°F)192 mm (7.5 inches)62%extreme
July Weather28°C (83°F)68 mm (2.7 inches)65%extreme
August Weather28°C (83°F)103 mm (4.1 inches)78%extreme
September Weather28°C (82°F)128 mm (5.0 inches)85%extreme
October Weather27°C (80°F)129 mm (5.1 inches)87%extreme
November Weather25°C (77°F)53 mm (2.1 inches)88%very high
December Weather24°C (75°F)25 mm (1.0 inches)88%very high

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