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September Weather in El Alamo, Mexico

Last updated: August 27, 2025

In September, the average temperature in El Alamo, Mexico hovers around 16°C (61°F), with a comfortable range from a cool 5°C (41°F) to a warm 26°C (78°F). Expect some rainy days, as precipitation averages 144 mm (5.7 in) over 21 days. With an average humidity of 82%, be prepared for a slightly damp atmosphere, perfect for cozy indoor activities or exploring the lush surroundings.

September Temperature in El Alamo

In September in El Alamo, the average temperature is 16°C (61°F). Maximums can reach 26°C (78°F) and minimums can be as low as 5°C (41°F). This makes it an ideal time for travelers to enjoy a range of outdoor activities while experiencing comfortable weather.

September Weather in El Alamo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in El Alamo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Alamo, September typically has an average temperature of 16°C (61°F), with highs reaching up to 26°C (78°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec545861646563616261595654
Data source: Temperature data for El Alamo 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 El Alamo

In El Alamo in September, the precipitation amount is 144 mm (5.7 in) over a span of 21 days.

September Precipitation Trends in El Alamo

The chart displays monthly precipitation patterns in El Alamo, 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 El Alamo, September typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec9720335014011212914483213
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in El Alamo

In El Alamo in September humidity is 82%. With an average temperature of 16°C (61°F), this humidity feels like a heavy blanket enveloping you, making travel feel a bit sluggish and requiring frequent breaks to hydrate and cool down.

September Average Humidity in El Alamo

This chart illustrates the average monthly humidity levels in El Alamo, 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 El Alamo 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 El Alamo

In El Alamo 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 El Alamo, you can check here.

Maximum UV Index Levels in El Alamo for September

The chart shows the monthly maximum UV Index (UVI) for El Alamo 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 El Alamo typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9121415151515141413108
Data source: El Alamo 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 El Alamo Compares to Other Months

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

This table compares monthly weather conditions in El Alamo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)9 mm (0.4 inches)84%very high
February Weather14°C (58°F)7 mm (0.3 inches)78%extreme
March Weather16°C (61°F)20 mm (0.8 inches)75%extreme
April Weather18°C (64°F)33 mm (1.3 inches)70%extreme
May Weather18°C (65°F)50 mm (2.0 inches)77%extreme
June Weather17°C (63°F)139 mm (5.5 inches)76%extreme
July Weather16°C (62°F)112 mm (4.4 inches)68%extreme
August Weather16°C (62°F)129 mm (5.1 inches)70%extreme
September Weather16°C (61°F)144 mm (5.7 inches)82%extreme
October Weather15°C (59°F)83 mm (3.3 inches)91%extreme
November Weather13°C (56°F)21 mm (0.8 inches)89%very high
December Weather12°C (55°F)3 mm (0.1 inches)88%very high

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