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September Weather in Mendez, Mexico

Last updated: August 27, 2025

In Mendez, Mexico, the average temperature in September is a warm 28°C (83°F), perfect for enjoying the outdoors. However, temperatures can swing from a minimum of 18°C (64°F) to a scorching maximum of 41°C (106°F). Expect some rain, with an average precipitation amount of 92 mm (3.6 in) over 11 days, and embrace the average humidity of 75% that keeps the air feeling rich and tropical.

September Temperature in Mendez

In September in Mendez, the average temperature is 28°C (83°F). Maximum temperatures can reach 41°C (106°F), while minimums can drop as low as 18°C (64°F). Be prepared for hot days but also bring a light jacket for cooler evenings when traveling.

September Weather in Mendez: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mendez, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mendez, September typically has an average temperature of 28°C (83°F), with highs reaching up to 41°C (106°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec636673788386868883776965
Data source: Temperature data for Mendez 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 Mendez

In Mendez in September, the precipitation amount is 92 mm (3.6 in) spread over 11 days.

September Precipitation Trends in Mendez

The chart displays monthly precipitation patterns in Mendez, 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 Mendez, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec211533345548771892743314
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mendez

In Mendez in September humidity is 75%. With an average temperature of 28°C (83°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel particularly heavy, and prompting frequent breaks in the shade to stay comfortable while traveling.

September Average Humidity in Mendez

This chart illustrates the average monthly humidity levels in Mendez, 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 Mendez is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%78%81%82%74%68%67%75%78%83%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mendez

In Mendez in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Mendez.

Maximum UV Index Levels in Mendez for September

The chart shows the monthly maximum UV Index (UVI) for Mendez 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 Mendez typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69101212121212111086
Data source: Mendez 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 Mendez Compares to Other Months

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

This table compares monthly weather conditions in Mendez, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)21 mm (0.8 inches)84%high
February Weather19°C (67°F)15 mm (0.6 inches)83%very high
March Weather23°C (73°F)33 mm (1.3 inches)78%very high
April Weather26°C (78°F)34 mm (1.4 inches)81%extreme
May Weather28°C (83°F)55 mm (2.2 inches)82%extreme
June Weather30°C (86°F)48 mm (1.9 inches)74%extreme
July Weather30°C (87°F)77 mm (3.0 inches)68%extreme
August Weather31°C (88°F)18 mm (0.7 inches)67%extreme
September Weather28°C (83°F)92 mm (3.6 inches)75%extreme
October Weather25°C (77°F)74 mm (2.9 inches)78%very high
November Weather21°C (70°F)33 mm (1.3 inches)83%very high
December Weather18°C (66°F)14 mm (0.5 inches)86%high

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