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September Weather in Buena Vista, Mexico

Last updated: August 27, 2025

In Buena Vista, Mexico, the average temperature in September is a warm 26°C (78°F), with a minimum of 16°C (61°F) and reaching up to a sweltering 37°C (99°F). Expect a total precipitation of 104 mm (4.1 in) spread across 10 days, contributing to an average humidity level of 72%. Whether you're basking in the sun or dodging the rain, it's a month full of vibrant weather!

September Temperature in Buena Vista

In September, in Buena Vista, the average temperature is 26°C (78°F). Maximums can reach 37°C (99°F), while minimums can dip as low as 16°C (61°F). This makes Buena Vista an excellent destination for travelers seeking warm weather and plenty of outdoor activities.

September Weather in Buena Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Buena Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Buena Vista, September typically has an average temperature of 26°C (78°F), with highs reaching up to 37°C (99°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec576268737881828378726460
Data source: Temperature data for Buena Vista 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 Buena Vista

In Buena Vista in September, the precipitation amount is 104 mm (4.1 in) over a period of 10 days.

September Precipitation Trends in Buena Vista

The chart displays monthly precipitation patterns in Buena Vista, 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 Buena Vista, September typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec292036487256719104523226
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Buena Vista

In Buena Vista in September, humidity is 72%. With an average temperature of 26°C (78°F), this humidity feels like a warm, enveloping blanket that can leave travelers feeling sticky and slightly fatigued, making it essential to stay hydrated and take breaks in the shade.

September Average Humidity in Buena Vista

This chart illustrates the average monthly humidity levels in Buena Vista, 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 Buena Vista is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%70%65%59%66%71%57%58%73%76%81%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Buena Vista

In Buena Vista 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 Buena Vista.

Maximum UV Index Levels in Buena Vista for September

The chart shows the monthly maximum UV Index (UVI) for Buena Vista 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 Buena Vista typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79111313131312121186
Data source: Buena Vista 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 Buena Vista Compares to Other Months

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

This table compares monthly weather conditions in Buena Vista, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (58°F)28 mm (1.1 inches)75%high
February Weather16°C (62°F)20 mm (0.8 inches)70%very high
March Weather20°C (69°F)36 mm (1.4 inches)65%extreme
April Weather23°C (73°F)48 mm (1.9 inches)59%extreme
May Weather26°C (79°F)72 mm (2.8 inches)66%extreme
June Weather27°C (81°F)56 mm (2.2 inches)71%extreme
July Weather28°C (82°F)71 mm (2.8 inches)57%extreme
August Weather28°C (83°F)9 mm (0.3 inches)58%extreme
September Weather26°C (78°F)104 mm (4.1 inches)72%extreme
October Weather22°C (72°F)52 mm (2.0 inches)76%extreme
November Weather18°C (65°F)31 mm (1.2 inches)81%very high
December Weather16°C (61°F)26 mm (1.0 inches)80%high

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