Scottsdale, Arizona weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Fair
Best time to visit: November – April
What is the weather like in Scottsdale, Arizona in September?
In September, Scottsdale, Arizona is very hot: daytime highs average 37 °C, and even at night it stays warm at around 23 °C. With around 9 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 26 mm in total. On about 28 days the thermometer climbs to 30 °C or more. All in all, September is a so-so month for a holiday in Scottsdale, Arizona.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 49 | 50 | 77 |
| Day | 39° | 37° | 31° |
| Night | 27° | 23° | 16° |
| Sun | 10 h | 9 h | 9 h |
| Rain days | 4 | 3 | 2 |
More details for September
- Daylight
- 12 h 26 min06:10 – 18:36
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 3 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 21 %on averageAll months
- Hot days
- 28 days30 °C or moreAll months
- Time zone
- UTC−7America/Phoenix
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
Scottsdale, Arizona in September: quick answers
Is Scottsdale, Arizona hot in September?
Yes. In September, Scottsdale, Arizona is very hot: daytime highs average 37 °C and nights stay around 23 °C. On about 28 days the thermometer climbs to 30 °C or more.
Does it rain much in Scottsdale, Arizona in September?
Rain is rare: about 3 days bring 26 mm in total.
Scottsdale, Arizona month by month
The whole year in Scottsdale, ArizonaAll destinations: USAWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences