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September Weather in Presidio, United States

Last updated: June 24, 2025

In September, the average temperature in Presidio, United States is a warm 27°C (80°F). Visitors can expect a range of temperatures, with minimums dipping to 11°C (53°F) and maximums soaring to 39°C (103°F). During this time, 41 mm (1.6 in) of precipitation typically falls over 5 days, contributing to an average humidity level of 75%. Prepare for a season of warmth and occasional showers!

September Temperature in Presidio

In September in Presidio, the average temperature is 27°C (80°F). Maximums can reach 39°C (103°F), while minimums can drop to as low as 11°C (53°F). Be prepared for a diverse range of temperatures for a comfortable traveling experience.

September Weather in Presidio: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Presidio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Presidio, September typically has an average temperature of 27°C (80°F), with highs reaching up to 39°C (103°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec515867758387868680726154
Data source: Temperature data for Presidio 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 Presidio

In Presidio in September, the precipitation amount is 41 mm (1.6 in) over a period of 5 days.

September Precipitation Trends in Presidio

The chart displays monthly precipitation patterns in Presidio, 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 Presidio, September typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec963762218204113919
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Presidio

In Presidio in September humidity is 75%. With an average temperature of 27°C (80°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit more challenging, as every step can leave you feeling sticky and in need of frequent hydration breaks.

September Average Humidity in Presidio

This chart illustrates the average monthly humidity levels in Presidio, 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 Presidio is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%72%62%63%70%73%67%62%75%78%85%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Presidio

In Presidio 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 Presidio.

Maximum UV Index Levels in Presidio for September

The chart shows the monthly maximum UV Index (UVI) for Presidio 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 Presidio typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6810131313131211975
Data source: Presidio 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 Presidio Compares to Other Months

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

This table compares monthly weather conditions in Presidio, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)9 mm (0.4 inches)75%high
February Weather14°C (58°F)6 mm (0.2 inches)72%very high
March Weather20°C (67°F)3 mm (0.1 inches)62%very high
April Weather24°C (75°F)7 mm (0.3 inches)62%extreme
May Weather28°C (83°F)6 mm (0.2 inches)69%extreme
June Weather31°C (87°F)22 mm (0.8 inches)73%extreme
July Weather30°C (87°F)18 mm (0.7 inches)67%extreme
August Weather30°C (86°F)20 mm (0.8 inches)62%extreme
September Weather27°C (80°F)41 mm (1.6 inches)75%extreme
October Weather22°C (73°F)13 mm (0.5 inches)78%very high
November Weather16°C (62°F)9 mm (0.3 inches)85%high
December Weather12°C (54°F)19 mm (0.7 inches)85%moderate

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