Average temperatures in Phoenix throughout the duration of September is 28. Highs are expected to be 37 with lows of 21 degrees. We have put some more details below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 28 |
| High Temperature | 37 |
| Low Temperature | 21 |
| Sunshine Per Day | 12 |
Useful Links: Phoenix Weather: Average Weather & Yearly Climate