Scottsdale (AZ)
September
Weather in Scottsdale, Arizona for September 2025
Your guide to Scottsdale weather in September - trends and predictions
Until now, September 2025 in Scottsdale is slightly cooler than the historical average by -1.7 °F.
Expect cooler weather in the next days in Scottsdale with the forecast suggesting a temperature of 37.3 °F, lower than the historical average.
In general, the average temperature in Scottsdale at the beginning of September is 39.4 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 37 °F by the end of September.
With an average of 3 rainy days, Scottsdale experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
27
Dry days
3
Rainy days
0
Snow days
39°/26°
Temperatures
17 km/h
Avg max wind
23 %
Avg humidity
Scottsdale Weather September
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Temperatures trend during September in Scottsdale
See the weather trend as well as the moving average line
September weather in Scottsdale day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy light rain with thunder | 39° /27° | 6.6 mm | 9 | |
| Sept. 2 |  Patchy rain possible | 40° /28° | 2.2 mm | 9 | |
| Sept. 3 |  Sunny | 40° /28° | 0 mm | 10 | |
| Sept. 4 | Sunny | 40° /29° | 0 mm | 9 | |
| Sept. 5 | Sunny | 37° /27° | 0 mm | 9 | |
| Sept. 6 | Sunny | 39° /28° | 0 mm | 10 | |
| Sept. 7 | Sunny | 41° /28° | 0 mm | 9 | |
| Sept. 8 | Sunny | 40° /28° | 0 mm | 10 | |
| Sept. 9 | Sunny | 42° /28° | 0 mm | 10 | |
| Sept. 10 | Sunny | 41° /28° | 0 mm | 9 | |
| Sept. 11 | Sunny | 39° /29° | 0 mm | 9 | |
| Sept. 12 |  Thundery outbreaks possible | 36° /28° | 0 mm | 8 | |
| Sept. 13 | Sunny | 37° /26° | 0.9 mm | 9 | |
| Sept. 14 | Sunny | 38° /26° | 0 mm | 9 | |
| Sept. 15 | Sunny | 41° /22° | 0 mm | 2 | |
| Sept. 16 | Sunny | 42° /25° | 0 mm | 2 | |
| Sept. 17 |  Partly cloudy | 39° /27° | 0 mm | 1.6 | |
| Sept. 18 | Patchy rain possible | 37° /29° | 0.4 mm | 0.7 | |
| Sept. 19 | Patchy rain possible | 35° /30° | 0.7 mm | 0 | |
| Sept. 20 | Sunny | 38° /29° | 0 mm | 8 | |
| Sept. 21 | Sunny | 38° /32° | 0 mm | 9 | |
| Sept. 22 | Patchy rain possible | 38° /28° | 0.4 mm | 7 | |
| Sept. 23 | Patchy rain possible | 34° /25° | 0.5 mm | 6 | |
| Sept. 24 | Sunny | 35° /27° | 0 mm | 8 | |
| Sept. 25 | Sunny | 37° /29° | 0 mm | 8 | |
| Sept. 26 | Sunny | 38° /30° | 0 mm | 8 | |
| Sept. 27 | Sunny | 38° /30° | 0 mm | 8 | |
| Sept. 28 | Sunny | 32° /26° | 0 mm | 7 | |
| Sept. 29 | Sunny | 40° /26° | 0 mm | 10 | |
| Sept. 30 | Sunny | 39° /24° | 0 mm | 10 | |
| Next | |||||
Important Notice
Our weather forecast for Scottsdale in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Scottsdale forecast closer to your planned date for the most up-to-date weather information.
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Scottsdale in September - FAQ
What are the expected maximum and minimum temperatures in Scottsdale during September?
With daytime temperatures soaring above 39° and not dropping much below 26° at night, September in Scottsdale is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Scottsdale during September?
Expect minimal rainfall in Scottsdale during September, with a total of 14.9 mm over approximately 3 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Scottsdale during September?
The average wind speed in Scottsdale during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Scottsdale
Explore the daily rainfall trends and prepare for Scottsdales September weather 💧
UV exposure in Scottsdale during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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