September Weather in Cathedral City, United States

Last updated: June 24, 2025

In Cathedral City, United States, the average temperature in September hovers around 26°C (79°F). However, be prepared for a wide range, as temperatures can dip to a chilly 9°C (49°F) or soar up to a scorching 43°C (110°F). With an average precipitation of only 5 mm (0.2 in) spread across 1 day, and an average humidity of 52%, the weather is generally warm and pleasant, perfect for outdoor activities!

September Temperature in Cathedral City

In September in Cathedral City, the average temperature is 26°C (79°F). Maximums can reach 43°C (110°F) and minimums can drop to as low as 9°C (49°F). Be prepared for a wide range of temperatures when traveling during this time.

September Weather in Cathedral City: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cathedral City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cathedral City, September typically has an average temperature of 26°C (79°F), with highs reaching up to 43°C (110°F) and lows dropping to around 9°C (49°F).

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

September Precipitation in Cathedral City

In Cathedral City in September, the precipitation amount is 5 mm (0.2 in) over a duration of 1 day.

September Precipitation Trends in Cathedral City

The chart displays monthly precipitation patterns in Cathedral City, 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 Cathedral City, September typically receives around 5 mm (0.2 inches) of precipitation spread over approximately 1 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Cathedral City

In Cathedral City in September, humidity is 52%. With an average temperature of 26°C (79°F), this humidity feels like a warm embrace, making it ideal for leisurely exploration but requiring occasional breaks to stay refreshed as you travel.

September Average Humidity in Cathedral City

This chart illustrates the average monthly humidity levels in Cathedral City, 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 Cathedral City is approximately 52%, 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 Cathedral City

In Cathedral City 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 Cathedral City.

Maximum UV Index Levels in Cathedral City for September

The chart shows the monthly maximum UV Index (UVI) for Cathedral City 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 Cathedral City typically reaches 11, which falls under the extreme exposure category.

Data source: Cathedral City 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 Cathedral City Compares to Other Months

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

This table compares monthly weather conditions in Cathedral City, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (51°F)	37 mm (1.5 inches)	72%	moderate
February Weather	11°C (52°F)	41 mm (1.6 inches)	77%	high
March Weather	13°C (56°F)	26 mm (1.0 inches)	67%	very high
April Weather	18°C (64°F)	15 mm (0.6 inches)	56%	extreme
May Weather	20°C (69°F)	4 mm (0.2 inches)	46%	extreme
June Weather	26°C (80°F)	2 mm (0.1 inches)	48%	extreme
July Weather	30°C (86°F)	11 mm (0.4 inches)	46%	extreme
August Weather	29°C (85°F)	8 mm (0.3 inches)	42%	extreme
September Weather	26°C (79°F)	5 mm (0.2 inches)	52%	extreme
October Weather	20°C (68°F)	8 mm (0.3 inches)	58%	very high
November Weather	15°C (59°F)	16 mm (0.6 inches)	66%	moderate
December Weather	10°C (51°F)	37 mm (1.4 inches)	74%	moderate