September Weather in Carefree, United States

Last updated: June 24, 2025

In September, the average temperature in Carefree, United States reaches a warm 30°C (87°F). Expect a minimum of 13°C (56°F) and a sweltering maximum of 44°C (111°F). Umbrellas might come in handy, as precipitation can total 25 mm (1.0 in) over 3 days. With an average humidity of 64%, be prepared for a balmy atmosphere!

September Temperature in Carefree

In September in Carefree, the average temperature is 30°C (87°F). Maximums can reach 44°C (111°F), while minimums can drop as low as 13°C (56°F). Be prepared for hot days and cooler nights when traveling during this month.

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

The chart illustrates September temperature patterns in Carefree, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carefree, September typically has an average temperature of 30°C (87°F), with highs reaching up to 44°C (111°F) and lows dropping to around 13°C (56°F).

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

September Precipitation in Carefree

In Carefree in September, the precipitation amount is 25 mm (1.0 in) over the course of 3 days.

September Precipitation Trends in Carefree

The chart displays monthly precipitation patterns in Carefree, 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 Carefree, September typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 3 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 Carefree

In Carefree in September humidity is 64%. With an average temperature of 30°C (87°F), this humidity feels like a warm, muggy embrace, making travel a bit sticky and uncomfortable but also inviting you to slow down and savor refreshing breaks in the shade.

September Average Humidity in Carefree

This chart illustrates the average monthly humidity levels in Carefree, 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 Carefree is approximately 64%, 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 Carefree

In Carefree 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 Carefree.

Maximum UV Index Levels in Carefree for September

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

Data source: Carefree 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 Carefree Compares to Other Months

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

This table compares monthly weather conditions in Carefree, 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 (53°F)	34 mm (1.4 inches)	76%	moderate
February Weather	13°C (55°F)	43 mm (1.7 inches)	79%	high
March Weather	17°C (62°F)	39 mm (1.5 inches)	67%	very high
April Weather	22°C (72°F)	2 mm (0.1 inches)	55%	very high
May Weather	26°C (79°F)	2 mm (0.1 inches)	40%	extreme
June Weather	32°C (90°F)	3 mm (0.1 inches)	33%	extreme
July Weather	34°C (93°F)	50 mm (2.0 inches)	34%	extreme
August Weather	33°C (92°F)	33 mm (1.3 inches)	48%	extreme
September Weather	30°C (87°F)	25 mm (1.0 inches)	64%	very high
October Weather	23°C (74°F)	26 mm (1.0 inches)	67%	high
November Weather	18°C (64°F)	28 mm (1.1 inches)	77%	moderate
December Weather	12°C (54°F)	26 mm (1.0 inches)	82%	moderate