Typical September weather
Phoenix
Arizona · September
100° days
78° nights
maybe one rainy day · 12½ hours of daylight
What to pack
- Swimsuit
- Sunscreen
- Water bottle
What September feels like
The heat holds through most of September and locals get openly impatient with it. Late in the month the monsoon winds down and the first evening that turns pleasant gets discussed like news.
Real rain shows up maybe one day all month; the rest stay dry. Humidity stays comfortable; the air never feels heavy. Most afternoons push past 90°.
The numbers
| Typical high | 100° |
|---|---|
| Typical low | 78° |
| Days with real rain | 1 |
| Total rain | 0.6 in |
| Humidity | comfortable |
| Sunrise / sunset (mid-month) | 6:12 am / 6:34 pm |