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September Weather in Cienega Grande, Mexico

Last updated: August 27, 2025

In Cienega Grande, Mexico, the average temperature in September hovers around 20°C (67°F), offering a mild climate for visitors. However, be prepared for temperature fluctuations, as it can dip to a cool 9°C (49°F) at night and rise to a warm 31°C (88°F) by day. Expect moderate precipitation with an average of 155 mm (6.1 in) over approximately 18 days, while humidity remains relatively high at 82%. Whether you're exploring or relaxing, this month provides a unique blend of weather conditions!

September Temperature in Cienega Grande

In September in Cienega Grande, the average temperature is 20°C (67°F). Maximums can reach 31°C (88°F), and minimums can be as low as 9°C (49°F). This pleasant climate makes Cienega Grande an ideal destination for travelers seeking moderate weather during this time.

September Weather in Cienega Grande: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cienega Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cienega Grande, September typically has an average temperature of 20°C (67°F), with highs reaching up to 31°C (88°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec535864697476727267655954
Data source: Temperature data for Cienega Grande 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 Cienega Grande

In Cienega Grande in September, the total precipitation amount is 155 mm (6.1 in) spread over 18 days.

September Precipitation Trends in Cienega Grande

The chart displays monthly precipitation patterns in Cienega Grande, 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 Cienega Grande, September typically receives around 155 mm (6.1 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec811948411338715559912
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cienega Grande

In Cienega Grande in September humidity is 82%. With an average temperature of 20°C (67°F), this humidity feels like a warm, thick blanket enveloping you, making travel slightly uncomfortable as you navigate the stickiness in the air.

September Average Humidity in Cienega Grande

This chart illustrates the average monthly humidity levels in Cienega Grande, 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 Cienega Grande is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%62%53%48%52%64%73%71%82%83%82%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cienega Grande

In Cienega Grande 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 Cienega Grande.

Maximum UV Index Levels in Cienega Grande for September

The chart shows the monthly maximum UV Index (UVI) for Cienega Grande 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 Cienega Grande typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec811121414131413131197
Data source: Cienega Grande 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 Cienega Grande Compares to Other Months

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

This table compares monthly weather conditions in Cienega Grande, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)8 mm (0.3 inches)70%very high
February Weather14°C (58°F)10 mm (0.4 inches)62%extreme
March Weather18°C (64°F)9 mm (0.4 inches)53%extreme
April Weather20°C (69°F)4 mm (0.1 inches)48%extreme
May Weather23°C (74°F)8 mm (0.3 inches)52%extreme
June Weather24°C (76°F)41 mm (1.6 inches)64%extreme
July Weather22°C (72°F)133 mm (5.2 inches)73%extreme
August Weather22°C (72°F)87 mm (3.4 inches)71%extreme
September Weather20°C (67°F)155 mm (6.1 inches)82%extreme
October Weather18°C (65°F)59 mm (2.3 inches)83%extreme
November Weather15°C (60°F)9 mm (0.3 inches)82%very high
December Weather12°C (54°F)12 mm (0.5 inches)84%high

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