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September Weather in El Fuerte, Mexico

Last updated: August 27, 2025

In El Fuerte, Mexico, the average temperature in September hovers around a warm 28°C (83°F), with the mercury dipping as low as 21°C (70°F) and soaring to a high of 38°C (101°F). Expect 103 mm (4.0 in) of precipitation spread over 14 days, contributing to an average humidity of 82%. Whether you're seeking sun or shade, this month promises a mix of warmth and moisture!

September Temperature in El Fuerte

In September in El Fuerte, the average temperature is 28°C (83°F), with maximums reaching 38°C (101°F) and minimums dropping to as low as 21°C (70°F). This makes it an ideal time for travelers to enjoy warm weather and outdoor activities.

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

The chart illustrates September temperature patterns in El Fuerte, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Fuerte, September typically has an average temperature of 28°C (83°F), with highs reaching up to 38°C (101°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec646670768287858483817366
Data source: Temperature data for El Fuerte 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 Fuerte

In El Fuerte in September, the precipitation amount is 103 mm (4.0 in) over a span of 14 days.

September Precipitation Trends in El Fuerte

The chart displays monthly precipitation patterns in El Fuerte, 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 Fuerte, September typically receives around 103 mm (4.0 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec1629111027117124103243920
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in El Fuerte

In El Fuerte in September, humidity is 82%. With an average temperature of 28°C (83°F), this humidity feels like stepping into a warm, damp embrace, which can make traveling feel heavy and exhausting, as every movement can be met with a sticky veil of moisture that clings to the skin.

September Average Humidity in El Fuerte

This chart illustrates the average monthly humidity levels in El Fuerte, 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 Fuerte is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%67%60%51%47%50%70%82%82%78%78%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in El Fuerte

In El Fuerte 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 El Fuerte.

Maximum UV Index Levels in El Fuerte for September

The chart shows the monthly maximum UV Index (UVI) for El Fuerte 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 Fuerte typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69101213121212121076
Data source: El Fuerte 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 Fuerte Compares to Other Months

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

This table compares monthly weather conditions in El Fuerte, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (64°F)16 mm (0.6 inches)74%high
February Weather19°C (66°F)29 mm (1.2 inches)67%very high
March Weather21°C (71°F)11 mm (0.4 inches)60%very high
April Weather25°C (77°F)1 mm (0.0 inches)51%extreme
May Weather28°C (82°F)0 mm (0.0 inches)47%extreme
June Weather30°C (87°F)27 mm (1.1 inches)50%extreme
July Weather29°C (85°F)117 mm (4.6 inches)70%extreme
August Weather29°C (85°F)124 mm (4.9 inches)81%extreme
September Weather28°C (83°F)103 mm (4.0 inches)82%extreme
October Weather27°C (81°F)24 mm (0.9 inches)78%very high
November Weather23°C (74°F)39 mm (1.5 inches)78%high
December Weather19°C (66°F)20 mm (0.8 inches)80%high

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