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September Weather in San German, Mexico

Last updated: August 27, 2025

The average temperature in San German, Mexico during September is a warm 28°C (83°F). Expect a comfortable minimum of 18°C (64°F), with occasional highs reaching 38°C (101°F). The region experiences an average precipitation of 95 mm (3.8 in) over 15 days, all while maintaining a humidity level of 75%.

September Temperature in San German

In September in San German, the average temperature is 28°C (83°F), with maximums soaring to 38°C (101°F) and minimums dipping to 18°C (64°F). This climate makes it an ideal time for travelers seeking warm weather and outdoor adventures.

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

The chart illustrates September temperature patterns in San German, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San German, 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 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec636672778285858683777065
Data source: Temperature data for San German 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 German

In San German in September, the precipitation amount is 95 mm (3.8 in) over the course of 15 days.

September Precipitation Trends in San German

The chart displays monthly precipitation patterns in San German, 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 German, September typically receives around 95 mm (3.8 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec231935246574842595602718
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San German

In San German in September humidity is 75%. With an average temperature of 28°C (83°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel particularly heavy, and prompting frequent breaks in the shade to stay comfortable while traveling.

September Average Humidity in San German

This chart illustrates the average monthly humidity levels in San German, 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 German is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%78%81%82%74%68%67%75%78%83%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San German

In San German in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San German.

Maximum UV Index Levels in San German for September

The chart shows the monthly maximum UV Index (UVI) for San German 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 German typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69101212121211111086
Data source: San German 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 German Compares to Other Months

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

This table compares monthly weather conditions in San German, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)23 mm (0.9 inches)84%high
February Weather19°C (66°F)19 mm (0.7 inches)83%very high
March Weather22°C (72°F)35 mm (1.4 inches)78%very high
April Weather25°C (77°F)24 mm (0.9 inches)81%extreme
May Weather28°C (82°F)65 mm (2.6 inches)82%extreme
June Weather29°C (85°F)74 mm (2.9 inches)74%extreme
July Weather30°C (86°F)84 mm (3.3 inches)68%extreme
August Weather30°C (87°F)25 mm (1.0 inches)67%extreme
September Weather28°C (83°F)95 mm (3.8 inches)75%extreme
October Weather25°C (77°F)60 mm (2.4 inches)78%very high
November Weather21°C (70°F)27 mm (1.1 inches)83%very high
December Weather18°C (65°F)18 mm (0.7 inches)86%high

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