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September Weather in Mariano Matamoros, Mexico

Last updated: August 27, 2025

In Mariano Matamoros, Mexico, the average temperature in September hovers around 15°C (59°F). Expect a chill with minimums dipping to 4°C (39°F), while the maximum can reach a comfortable 23°C (74°F). Be prepared for 181 mm (7.1 in) of precipitation over 23 days, contributing to an average humidity of 82%.

September Temperature in Mariano Matamoros

In September in Mariano Matamoros, the average temperature is 15°C (59°F). The maximum can reach 23°C (74°F) and the minimum can be as low as 4°C (39°F). It's a great time to enjoy outdoor activities, so pack accordingly for both warm and cooler moments!

September Weather in Mariano Matamoros: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mariano Matamoros, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mariano Matamoros, September typically has an average temperature of 15°C (59°F), with highs reaching up to 23°C (74°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec515558606160595959575452
Data source: Temperature data for Mariano Matamoros 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 Mariano Matamoros

In Mariano Matamoros in September, the total precipitation amount is 181 mm (7.1 in) distributed over 23 days.

September Precipitation Trends in Mariano Matamoros

The chart displays monthly precipitation patterns in Mariano Matamoros, 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 Mariano Matamoros, September typically receives around 181 mm (7.1 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec139224366172141190181100255
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mariano Matamoros

In Mariano Matamoros in September, humidity is 82%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and uncomfortable for travelers.

September Average Humidity in Mariano Matamoros

This chart illustrates the average monthly humidity levels in Mariano Matamoros, 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 Mariano Matamoros is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mariano Matamoros

In Mariano Matamoros 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 Mariano Matamoros, you can check here.

Maximum UV Index Levels in Mariano Matamoros for September

The chart shows the monthly maximum UV Index (UVI) for Mariano Matamoros 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 Mariano Matamoros typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121415151515141413109
Data source: Mariano Matamoros 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 Mariano Matamoros Compares to Other Months

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

This table compares monthly weather conditions in Mariano Matamoros, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (51°F)13 mm (0.5 inches)84%very high
February Weather13°C (55°F)9 mm (0.4 inches)78%extreme
March Weather14°C (58°F)22 mm (0.9 inches)75%extreme
April Weather16°C (60°F)43 mm (1.7 inches)70%extreme
May Weather16°C (62°F)66 mm (2.6 inches)77%extreme
June Weather15°C (60°F)172 mm (6.8 inches)76%extreme
July Weather15°C (59°F)141 mm (5.6 inches)68%extreme
August Weather15°C (59°F)190 mm (7.5 inches)70%extreme
September Weather15°C (59°F)181 mm (7.1 inches)82%extreme
October Weather14°C (57°F)100 mm (3.9 inches)91%extreme
November Weather12°C (54°F)25 mm (1.0 inches)89%very high
December Weather11°C (52°F)5 mm (0.2 inches)88%very high

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