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September Weather in Chandler, United States

Last updated: June 24, 2025

In September, the average temperature in Chandler, United States is a warm 26°C (80°F), making it a desirable time to visit. Expect temperatures to range from a cool 11°C (51°F) to a scorching 38°C (101°F). During this month, you'll encounter an average precipitation of 86 mm (3.4 in) over about 9 days, while maintaining a comfortable average humidity of 65%. Enjoy the vibrant atmosphere as temperatures soar and occasional showers refresh the landscape!

September Temperature in Chandler

In September in Chandler, the average temperature is 26°C (80°F), with maximums reaching up to 38°C (101°F) and minimums dropping as low as 11°C (51°F). This makes it an ideal time to enjoy both warm days and cooler evenings, perfect for outdoor activities and sightseeing.

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 26°C (80°F), with highs reaching up to 38°C (101°F) and lows dropping to around 11°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec485161657481848479695853
Data source: Temperature data for Chandler 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 Chandler

In Chandler in September, the precipitation amount is 86 mm (3.4 in), falling over the course of 9 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 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec10414512613416910182738610469114
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chandler

In Chandler in September humidity is 65%. With an average temperature of 26°C (80°F), this humidity feels like a warm, sticky embrace, making travel less comfortable as you navigate the sights.

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 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
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 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 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
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.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)104 mm (4.1 inches)80%moderate
February Weather10°C (51°F)145 mm (5.7 inches)79%high
March Weather16°C (61°F)126 mm (5.0 inches)78%very high
April Weather18°C (66°F)134 mm (5.3 inches)78%very high
May Weather23°C (74°F)169 mm (6.6 inches)81%extreme
June Weather27°C (81°F)101 mm (4.0 inches)78%extreme
July Weather29°C (85°F)82 mm (3.2 inches)73%extreme
August Weather29°C (85°F)73 mm (2.9 inches)66%extreme
September Weather26°C (80°F)86 mm (3.4 inches)65%very high
October Weather21°C (69°F)104 mm (4.1 inches)72%very high
November Weather14°C (58°F)69 mm (2.7 inches)82%high
December Weather12°C (53°F)114 mm (4.5 inches)87%moderate

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