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September Weather in Glendale, United States

Last updated: June 24, 2025

In September, the average temperature in Glendale, United States is a warm 23°C (74°F). Expect temperatures to vary, with minimums dipping to 10°C (51°F) and maximums soaring to 44°C (112°F). With only 4 mm (0.1 in) of precipitation over 0 days, the region enjoys a relatively dry atmosphere, complemented by an average humidity of 48%.

September Temperature in Glendale

In September in Glendale, the average temperature is 23°C (74°F). Maximums can reach 44°C (112°F) and minimums can be as low as 10°C (51°F). Travelers should be prepared for a wide range of temperatures during this time, ensuring they pack accordingly for both warm daytime and cooler evening conditions.

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

The chart illustrates September temperature patterns in Glendale, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glendale, September typically has an average temperature of 23°C (74°F), with highs reaching up to 44°C (112°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec535456626471777774686153
Data source: Temperature data for Glendale 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 Glendale

In Glendale in September, the precipitation amount is 4 mm (0.1 in) recorded over a span of 0 days.

September Precipitation Trends in Glendale

The chart displays monthly precipitation patterns in Glendale, 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 Glendale, September typically receives around 4 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec7565862216222492478
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Glendale

In Glendale in September humidity is 48%. With an average temperature of 23°C (74°F), this humidity feels like a refreshing but slightly muggy embrace, making traveling enjoyable with a light breeze, yet prompting travelers to stay hydrated and take occasional breaks from the sun.

September Average Humidity in Glendale

This chart illustrates the average monthly humidity levels in Glendale, 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 Glendale is approximately 48%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%82%76%68%58%52%46%39%48%59%72%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Glendale

In Glendale 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 Glendale.

Maximum UV Index Levels in Glendale for September

The chart shows the monthly maximum UV Index (UVI) for Glendale 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 Glendale typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Glendale 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 Glendale Compares to Other Months

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

This table compares monthly weather conditions in Glendale, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (53°F)75 mm (3.0 inches)78%moderate
February Weather12°C (54°F)65 mm (2.6 inches)82%high
March Weather13°C (56°F)85 mm (3.4 inches)75%very high
April Weather17°C (62°F)22 mm (0.9 inches)68%very high
May Weather18°C (64°F)16 mm (0.6 inches)57%extreme
June Weather22°C (71°F)1 mm (0.1 inches)52%extreme
July Weather25°C (77°F)2 mm (0.1 inches)46%extreme
August Weather25°C (78°F)2 mm (0.1 inches)39%extreme
September Weather23°C (74°F)4 mm (0.1 inches)48%very high
October Weather20°C (68°F)9 mm (0.4 inches)59%high
November Weather16°C (61°F)24 mm (0.9 inches)72%moderate
December Weather12°C (53°F)77 mm (3.1 inches)76%moderate

Compare Glendale's Climate with Cities Worldwide