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September Weather in Ranchos Penitas West, United States

Last updated: June 24, 2025

In Ranchos Penitas West, United States, the average temperature in September reaches a warm 29°C (84°F). Expect temperatures to vary, with a minimum of 16°C (61°F) and a peak of 41°C (106°F). The month sees an average precipitation of 85 mm (3.3 in) over 10 days, accompanied by a notable average humidity of 73%.

September Temperature in Ranchos Penitas West

In September in Ranchos Penitas West, the average temperature is 29°C (84°F). Maximums can reach 41°C (106°F), and minimums can be as low as 16°C (61°F). Be prepared for warm weather and pack accordingly for both hot days and cooler evenings.

September Weather in Ranchos Penitas West: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ranchos Penitas West, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ranchos Penitas West, September typically has an average temperature of 29°C (84°F), with highs reaching up to 41°C (106°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec586271768286888984776661
Data source: Temperature data for Ranchos Penitas West 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 Ranchos Penitas West

In Ranchos Penitas West in September, the precipitation amount is 85 mm (3.3 in) over the course of 10 days.

September Precipitation Trends in Ranchos Penitas West

The chart displays monthly precipitation patterns in Ranchos Penitas West, 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 Ranchos Penitas West, September typically receives around 85 mm (3.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1920314310543523185552720
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ranchos Penitas West

In Ranchos Penitas West in September, humidity is 73%. With an average temperature of 29°C (84°F), this humidity feels like a warm blanket wrapped around you, making travel slightly uncomfortable as you sweat and seek shade, yet still inviting you to explore the vibrant local culture and activities.

September Average Humidity in Ranchos Penitas West

This chart illustrates the average monthly humidity levels in Ranchos Penitas West, 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 Ranchos Penitas West is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%79%76%77%80%73%66%65%73%76%80%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ranchos Penitas West

In Ranchos Penitas West 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 Ranchos Penitas West.

Maximum UV Index Levels in Ranchos Penitas West for September

The chart shows the monthly maximum UV Index (UVI) for Ranchos Penitas West 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 Ranchos Penitas West typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6810111112121211975
Data source: Ranchos Penitas West 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 Ranchos Penitas West Compares to Other Months

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

This table compares monthly weather conditions in Ranchos Penitas West, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (58°F)19 mm (0.7 inches)83%high
February Weather17°C (62°F)20 mm (0.8 inches)79%very high
March Weather22°C (71°F)31 mm (1.2 inches)76%very high
April Weather25°C (77°F)43 mm (1.7 inches)77%extreme
May Weather28°C (83°F)105 mm (4.1 inches)80%extreme
June Weather30°C (87°F)43 mm (1.7 inches)73%extreme
July Weather31°C (89°F)52 mm (2.1 inches)66%extreme
August Weather32°C (90°F)30 mm (1.2 inches)65%extreme
September Weather29°C (84°F)85 mm (3.3 inches)73%extreme
October Weather25°C (77°F)55 mm (2.2 inches)76%very high
November Weather19°C (67°F)27 mm (1.1 inches)80%high
December Weather16°C (61°F)20 mm (0.8 inches)86%moderate

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