nomadseason

September Weather in San Buenaventura, Mexico

Last updated: August 27, 2025

In September, the average temperature in San Buenaventura, Mexico is a pleasant 20°C (67°F). Expect a comfortable range with minimums dipping to 8°C (47°F) and maximums reaching up to 32°C (89°F). However, be prepared for occasional rain, as 73 mm (2.9 in) of precipitation can be expected over 9 days. With an average humidity of 82%, the air may feel quite humid, enhancing the tropical charm of your visit!

September Temperature in San Buenaventura

In September in San Buenaventura, the average temperature is 20°C (67°F). Maximums can reach up to 32°C (89°F), while minimums can drop as low as 8°C (47°F). This makes San Buenaventura an ideal destination for travelers seeking a pleasant climate with a range of temperatures to enjoy various outdoor activities.

September Weather in San Buenaventura: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Buenaventura, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Buenaventura, September typically has an average temperature of 20°C (67°F), with highs reaching up to 32°C (89°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec444855626875727167615445
Data source: Temperature data for San Buenaventura 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 San Buenaventura

In San Buenaventura in September, the precipitation amount is 73 mm (2.9 in), occurring over the course of 9 days.

September Precipitation Trends in San Buenaventura

The chart displays monthly precipitation patterns in San Buenaventura, 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 San Buenaventura, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec14121046181039373281619
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in San Buenaventura

In San Buenaventura 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 San Buenaventura

This chart illustrates the average monthly humidity levels in San Buenaventura, 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 San Buenaventura is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%69%63%50%39%36%60%78%82%76%80%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Buenaventura

In San Buenaventura 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 San Buenaventura.

Maximum UV Index Levels in San Buenaventura for September

The chart shows the monthly maximum UV Index (UVI) for San Buenaventura 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 San Buenaventura typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69111313131313121076
Data source: San Buenaventura 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 San Buenaventura Compares to Other Months

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

This table compares monthly weather conditions in San Buenaventura, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)14 mm (0.5 inches)78%high
February Weather9°C (48°F)12 mm (0.5 inches)69%very high
March Weather13°C (55°F)10 mm (0.4 inches)63%extreme
April Weather16°C (62°F)4 mm (0.1 inches)49%extreme
May Weather20°C (69°F)6 mm (0.2 inches)39%extreme
June Weather24°C (76°F)18 mm (0.7 inches)36%extreme
July Weather22°C (73°F)103 mm (4.1 inches)60%extreme
August Weather22°C (71°F)93 mm (3.7 inches)78%extreme
September Weather20°C (67°F)73 mm (2.9 inches)82%extreme
October Weather16°C (62°F)28 mm (1.1 inches)76%very high
November Weather12°C (54°F)16 mm (0.6 inches)80%high
December Weather7°C (46°F)19 mm (0.8 inches)85%high

Compare San Buenaventura's Climate with Cities Worldwide