September Weather in Scottsdale, Australia

Last updated: August 22, 2025

In Scottsdale, Australia, the average temperature in September hovers around 8°C (47°F). Expect a minimum of -3°C (28°F) and a maximum of 20°C (68°F), making it a month of distinct contrasts. Rainfall totals 86 mm (3.4 in) over 12 days, contributing to an average humidity of 80%. Get ready for a month that beautifully blends chill with warmth!

September Temperature in Scottsdale

In September in Scottsdale, the average temperature is 8°C (47°F), with maximums soaring to 20°C (68°F) and minimums dipping as low as -3°C (28°F). It's wise to pack layers to stay comfortable during your travels.

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

The chart illustrates September temperature patterns in Scottsdale, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Scottsdale, September typically has an average temperature of 8°C (47°F), with highs reaching up to 20°C (68°F) and lows dropping to around -3°C (28°F).

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

September Precipitation in Scottsdale

In Scottsdale in September, the precipitation amount is 86 mm (3.4 in) over a span of 12 days.

September Precipitation Trends in Scottsdale

The chart displays monthly precipitation patterns in Scottsdale, 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 Scottsdale, September typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 12 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 Scottsdale

In Scottsdale in September, humidity is 80%. With an average temperature of 8°C (47°F), this humidity feels like you're walking through a heavy mist, making your clothes cling to your skin and every step prone to a shiver, which can be quite uncomfortable for traveling.

September Average Humidity in Scottsdale

This chart illustrates the average monthly humidity levels in Scottsdale, 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 Scottsdale is approximately 80%, 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 Scottsdale

In Scottsdale in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Scottsdale.

Maximum UV Index Levels in Scottsdale for September

The chart shows the monthly maximum UV Index (UVI) for Scottsdale 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 Scottsdale typically reaches 7, which falls under the high exposure category.

Data source: Scottsdale 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 Scottsdale Compares to Other Months

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

This table compares monthly weather conditions in Scottsdale, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	17°C (62°F)	58 mm (2.3 inches)	69%	extreme
February Weather	15°C (59°F)	82 mm (3.2 inches)	68%	extreme
March Weather	15°C (58°F)	84 mm (3.3 inches)	72%	very high
April Weather	11°C (53°F)	66 mm (2.6 inches)	77%	high
May Weather	9°C (48°F)	85 mm (3.4 inches)	83%	moderate
June Weather	7°C (45°F)	69 mm (2.7 inches)	83%	low
July Weather	6°C (44°F)	117 mm (4.6 inches)	84%	low
August Weather	7°C (44°F)	90 mm (3.5 inches)	83%	moderate
September Weather	8°C (47°F)	86 mm (3.4 inches)	80%	high
October Weather	11°C (51°F)	100 mm (3.9 inches)	76%	very high
November Weather	13°C (55°F)	71 mm (2.8 inches)	76%	extreme
December Weather	14°C (58°F)	84 mm (3.3 inches)	71%	extreme