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September Weather in La Desembocada, Mexico

Last updated: August 27, 2025

In La Desembocada, Mexico, the average temperature in September hovers around 26°C (80°F), creating a warm and inviting atmosphere. Temperatures can range from a comfortable 23°C (73°F) to a sweltering 31°C (88°F). However, be prepared for substantial rainfall, with an average precipitation of 358 mm (14.1 in) spread over 28 days. With an average humidity of 78%, La Desembocada is a destination where the warmth is felt both in the air and on your skin.

September Temperature in La Desembocada

In September in La Desembocada, the average temperature is 26°C (80°F). Maximums can reach 31°C (88°F) and minimums can be as low as 23°C (73°F). This warm and pleasant weather makes La Desembocada a perfect destination for travelers looking to enjoy outdoor activities and sunshine.

September Weather in La Desembocada: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in La Desembocada, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Desembocada, September typically has an average temperature of 26°C (80°F), with highs reaching up to 31°C (88°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec717172737679818080797672
Data source: Temperature data for La Desembocada 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 La Desembocada

In La Desembocada in September, the precipitation amount is 358 mm (14.1 in) over a span of 28 days.

September Precipitation Trends in La Desembocada

The chart displays monthly precipitation patterns in La Desembocada, 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 La Desembocada, September typically receives around 358 mm (14.1 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec23291141711923823582143020
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in La Desembocada

In La Desembocada in September, humidity is 78%. With an average temperature of 26°C (80°F), this humidity feels like a warm blanket wrapping around you, making travel feel sticky and heavy, while the air clings to your skin and encourages frequent breaks in shaded spots to stay cool.

September Average Humidity in La Desembocada

This chart illustrates the average monthly humidity levels in La Desembocada, 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 La Desembocada is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%69%67%66%69%78%79%78%78%75%74%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in La Desembocada

In La Desembocada 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 La Desembocada.

Maximum UV Index Levels in La Desembocada for September

The chart shows the monthly maximum UV Index (UVI) for La Desembocada 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 La Desembocada typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121313131213121197
Data source: La Desembocada 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 La Desembocada Compares to Other Months

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

This table compares monthly weather conditions in La Desembocada, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (71°F)23 mm (0.9 inches)71%very high
February Weather22°C (71°F)29 mm (1.1 inches)69%very high
March Weather22°C (72°F)1 mm (0.0 inches)67%extreme
April Weather23°C (74°F)1 mm (0.0 inches)66%extreme
May Weather25°C (77°F)4 mm (0.2 inches)69%extreme
June Weather26°C (79°F)171 mm (6.7 inches)78%extreme
July Weather27°C (81°F)192 mm (7.6 inches)79%extreme
August Weather27°C (81°F)382 mm (15.0 inches)78%extreme
September Weather26°C (80°F)358 mm (14.1 inches)78%extreme
October Weather26°C (80°F)214 mm (8.4 inches)75%extreme
November Weather25°C (77°F)30 mm (1.2 inches)74%very high
December Weather22°C (73°F)20 mm (0.8 inches)74%high

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