September Weather in Santa Paula, United States

Last updated: June 24, 2025

In Santa Paula, United States, the average temperature in September is a pleasant 21°C (71°F). However, prepare for a range—temperatures can dip to a minimum of 11°C (51°F) and soar up to a maximum of 40°C (104°F). Rainfall is minimal, with an average precipitation of just 2 mm (0.1 in) over 0 days, and the average humidity sits at a comfortable 48%. Enjoy the diverse weather while exploring this vibrant locale!

September Temperature in Santa Paula

In September in Santa Paula, the average temperature is 21°C (71°F), with maximums reaching 40°C (104°F) and minimums dropping as low as 11°C (51°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both light clothing for the heat and layers for cooler evenings.

September Weather in Santa Paula: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santa Paula, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Paula, September typically has an average temperature of 21°C (71°F), with highs reaching up to 40°C (104°F) and lows dropping to around 11°C (51°F).

Data source: Temperature data for Santa Paula generated using information from the Copernicus Climate Change Service.

September Precipitation in Santa Paula

In Santa Paula in September, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

September Precipitation Trends in Santa Paula

The chart displays monthly precipitation patterns in Santa Paula, 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 Santa Paula, September typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Santa Paula

In Santa Paula in September humidity is 48%. With an average temperature of 21°C (71°F), this humidity feels like a mild embrace, making it comfortable for exploring the sights and enjoying outdoor activities.

September Average Humidity in Santa Paula

This chart illustrates the average monthly humidity levels in Santa Paula, 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 Santa Paula is approximately 48%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santa Paula

In Santa Paula in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Santa Paula.

Maximum UV Index Levels in Santa Paula for September

The chart shows the monthly maximum UV Index (UVI) for Santa Paula 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 Santa Paula typically reaches 10, which falls under the very high exposure category.

Data source: Santa Paula 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 Santa Paula Compares to Other Months

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

This table compares monthly weather conditions in Santa Paula, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	81 mm (3.2 inches)	78%	moderate
February Weather	13°C (55°F)	66 mm (2.6 inches)	82%	high
March Weather	14°C (57°F)	76 mm (3.0 inches)	75%	very high
April Weather	16°C (61°F)	21 mm (0.8 inches)	68%	very high
May Weather	17°C (62°F)	15 mm (0.6 inches)	57%	extreme
June Weather	19°C (67°F)	2 mm (0.1 inches)	52%	extreme
July Weather	22°C (72°F)	1 mm (0.0 inches)	46%	extreme
August Weather	22°C (73°F)	1 mm (0.0 inches)	39%	extreme
September Weather	21°C (71°F)	2 mm (0.1 inches)	48%	very high
October Weather	19°C (67°F)	9 mm (0.4 inches)	59%	high
November Weather	16°C (62°F)	20 mm (0.8 inches)	72%	moderate
December Weather	13°C (56°F)	76 mm (3.0 inches)	76%	moderate