nomadseason

September Weather in El Custodio, Mexico

Last updated: August 27, 2025

In September, the average temperature in El Custodio, Mexico is a pleasant 23°C (74°F). You can expect a minimum of 15°C (59°F) and a maximum reaching up to 36°C (96°F). During this time, the area receives about 94 mm (3.7 in) of precipitation over 17 days, contributing to an average humidity of 81%. Stay prepared for a wet yet warm adventure!

September Temperature in El Custodio

In September in El Custodio, the average temperature is 23°C (74°F). Maximum temperatures can reach 36°C (96°F), while the minimum can drop to as low as 15°C (59°F). This pleasant climate makes it an ideal time for traveling and exploring the local sights.

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

The chart illustrates September temperature patterns in El Custodio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Custodio, September typically has an average temperature of 23°C (74°F), with highs reaching up to 36°C (96°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec596468737776757573706460
Data source: Temperature data for El Custodio generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in El Custodio

In El Custodio in September, the precipitation amount is 94 mm (3.7 in) over the course of 17 days.

September Precipitation Trends in El Custodio

The chart displays monthly precipitation patterns in El Custodio, 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 Custodio, September typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec141519225175845194612012
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in El Custodio

In El Custodio in September, humidity is 81%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket draped over your skin, making travel feel a bit more sluggish and requiring plenty of water breaks to stay comfortable.

September Average Humidity in El Custodio

This chart illustrates the average monthly humidity levels in El Custodio, 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 Custodio is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%69%65%64%75%78%67%64%82%86%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in El Custodio

In El Custodio in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in El Custodio.

Maximum UV Index Levels in El Custodio for September

The chart shows the monthly maximum UV Index (UVI) for El Custodio 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 Custodio typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131314131413131297
Data source: El Custodio 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 Custodio Compares to Other Months

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

This table compares monthly weather conditions in El Custodio, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)14 mm (0.6 inches)75%very high
February Weather18°C (64°F)15 mm (0.6 inches)69%very high
March Weather20°C (69°F)19 mm (0.8 inches)65%extreme
April Weather23°C (74°F)22 mm (0.9 inches)64%extreme
May Weather25°C (77°F)51 mm (2.0 inches)75%extreme
June Weather24°C (76°F)74 mm (2.9 inches)78%extreme
July Weather24°C (75°F)84 mm (3.3 inches)67%extreme
August Weather24°C (76°F)51 mm (2.0 inches)64%extreme
September Weather23°C (74°F)94 mm (3.7 inches)81%extreme
October Weather21°C (70°F)61 mm (2.4 inches)85%extreme
November Weather18°C (65°F)20 mm (0.8 inches)87%very high
December Weather16°C (61°F)12 mm (0.5 inches)87%high

Compare El Custodio's Climate with Cities Worldwide