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September Weather in San Benito, Mexico

Last updated: August 27, 2025

In September, the average temperature in San Benito, Mexico is a warm 27°C (80°F). You can expect the mercury to dip as low as 20°C (69°F) and soar up to 36°C (98°F). Be prepared for some rain, with an average precipitation of 175 mm (6.9 in) spread over 21 days, and a high humidity level of 78% that may add to the balmy atmosphere.

September Temperature in San Benito

In September in San Benito, the average temperature is 27°C (80°F). Maximum can reach 36°C (98°F) and minimum can be as low as 20°C (69°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in San Benito, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Benito, September typically has an average temperature of 27°C (80°F), with highs reaching up to 36°C (98°F) and lows dropping to around 20°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec656671758083828280797366
Data source: Temperature data for San Benito 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 San Benito

In San Benito in September, the precipitation amount reaches 175 mm (6.9 in) over the course of 21 days.

September Precipitation Trends in San Benito

The chart displays monthly precipitation patterns in San Benito, 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 Benito, September typically receives around 175 mm (6.9 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec133151140162181175364819
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Benito

In San Benito in September, humidity is 78%. With an average temperature of 27°C (80°F), this humidity feels like a heavy blanket enveloping you, making travel feel more exhausting and sweat-inducing than usual.

September Average Humidity in San Benito

This chart illustrates the average monthly humidity levels in San Benito, 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 Benito is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%67%62%58%59%64%74%78%78%75%74%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Benito

In San Benito 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 Benito.

Maximum UV Index Levels in San Benito for September

The chart shows the monthly maximum UV Index (UVI) for San Benito 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 Benito typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111313131313121086
Data source: San Benito 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 Benito Compares to Other Months

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

This table compares monthly weather conditions in San Benito, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (65°F)13 mm (0.5 inches)70%high
February Weather19°C (67°F)31 mm (1.2 inches)67%very high
March Weather22°C (71°F)5 mm (0.2 inches)62%extreme
April Weather24°C (76°F)1 mm (0.0 inches)58%extreme
May Weather27°C (80°F)1 mm (0.0 inches)59%extreme
June Weather29°C (84°F)40 mm (1.6 inches)64%extreme
July Weather28°C (82°F)162 mm (6.4 inches)74%extreme
August Weather28°C (82°F)180 mm (7.1 inches)78%extreme
September Weather27°C (80°F)175 mm (6.9 inches)78%extreme
October Weather26°C (80°F)36 mm (1.4 inches)75%very high
November Weather23°C (73°F)48 mm (1.9 inches)74%very high
December Weather19°C (66°F)19 mm (0.7 inches)72%high

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