September Weather in Chandler, United States

Last updated: June 24, 2025

In September, the average temperature in Chandler, United States hovers around 23°C (73°F), making it a pleasant time to explore. However, temperatures can vary, with a minimum of 9°C (48°F) and a maximum reaching up to 35°C (95°F). Be prepared for the chance of rain, as 86 mm (3.4 in) of precipitation may occur over 7 days. Additionally, the average humidity sits at a comfortable 71%, ensuring a refreshing atmosphere during your visit.

September Temperature in Chandler

In September in Chandler, the average temperature is 23°C (73°F). The maximum can reach 35°C (95°F), while the minimum can drop to as low as 9°C (48°F). This variety in temperatures makes Chandler an ideal destination for travelers seeking a mix of warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Chandler, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chandler, September typically has an average temperature of 23°C (73°F), with highs reaching up to 35°C (95°F) and lows dropping to around 9°C (48°F).

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

September Precipitation in Chandler

In Chandler in September, the total precipitation amount is 86 mm (3.4 in) over a span of 7 days.

September Precipitation Trends in Chandler

The chart displays monthly precipitation patterns in Chandler, 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 Chandler, September typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 7 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 Chandler

In Chandler in September humidity is 71%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor exploration slightly uncomfortable but still manageable if you stay hydrated and plan for breaks in shaded areas.

September Average Humidity in Chandler

This chart illustrates the average monthly humidity levels in Chandler, 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 Chandler is approximately 71%, 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 Chandler

In Chandler in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Chandler.

Maximum UV Index Levels in Chandler for September

The chart shows the monthly maximum UV Index (UVI) for Chandler 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 Chandler typically reaches 9, which falls under the very high exposure category.

Data source: Chandler 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 Chandler Compares to Other Months

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

This table compares monthly weather conditions in Chandler, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	94 mm (3.7 inches)	87%	moderate
February Weather	4°C (40°F)	124 mm (4.9 inches)	86%	moderate
March Weather	9°C (49°F)	139 mm (5.5 inches)	86%	high
April Weather	14°C (57°F)	120 mm (4.7 inches)	82%	very high
May Weather	21°C (69°F)	134 mm (5.3 inches)	82%	very high
June Weather	25°C (77°F)	118 mm (4.6 inches)	83%	extreme
July Weather	27°C (80°F)	81 mm (3.2 inches)	80%	very high
August Weather	25°C (78°F)	84 mm (3.3 inches)	74%	very high
September Weather	23°C (73°F)	86 mm (3.4 inches)	71%	very high
October Weather	16°C (62°F)	121 mm (4.8 inches)	78%	high
November Weather	8°C (46°F)	93 mm (3.7 inches)	88%	moderate
December Weather	5°C (42°F)	105 mm (4.1 inches)	88%	moderate