8.2 (Very High)
Last Updated 17 minutes ago
The hourly Phoenix, AZ UV Index forecast for Sunday, August 31st, 2025.
Last Updated 16 minutes ago
The UV index forecast for the next five days in Phoenix, AZ has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Phoenix over the next five days will be 9.7 on Sunday, August 31st at 12:00 pm.
The UV index forecast for Sunday, August 31st in Phoenix, AZ is below.
| Time | UV Index | Risk |
|---|---|---|
| 12pm | 9.7 |
Very High |
| 1pm | 9.7 |
Very High |
| 2pm | 8.2 |
Very High |
| 3pm | 5.8 |
Moderate |
| 4pm | 3.2 |
Moderate |
| 5pm | 1.3 |
Low |
| 6pm | 0.3 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Monday, September 1st in Phoenix, AZ is below.
| Time | UV Index | Risk |
|---|---|---|
| 12am | 0 |
Low |
| 1am | 0 |
Low |
| 2am | 0 |
Low |
| 3am | 0 |
Low |
| 4am | 0 |
Low |
| 5am | 0 |
Low |
| 6am | 0 |
Low |
| 7am | 0.3 |
Low |
| 8am | 1.3 |
Low |
| 9am | 3.2 |
Moderate |
| 10am | 5.7 |
Moderate |
| 11am | 8 |
Very High |
| 12pm | 9.4 |
Very High |
| 1pm | 9.5 |
Very High |
| 2pm | 8 |
Very High |
| 3pm | 5.2 |
Moderate |
| 4pm | 2.8 |
Low |
| 5pm | 1.2 |
Low |
| 6pm | 0.2 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Tuesday, September 2nd in Phoenix, AZ is below.
| Time | UV Index | Risk |
|---|---|---|
| 12am | 0 |
Low |
| 1am | 0 |
Low |
| 2am | 0 |
Low |
| 3am | 0 |
Low |
| 4am | 0 |
Low |
| 5am | 0 |
Low |
| 6am | 0 |
Low |
| 7am | 0.2 |
Low |
| 8am | 1 |
Low |
| 9am | 2.4 |
Low |
| 10am | 4 |
Moderate |
| 11am | 3.1 |
Moderate |
| 12pm | 6.2 |
High |
| 1pm | 8.6 |
Very High |
| 2pm | 7.5 |
High |
| 3pm | 5.6 |
Moderate |
| 4pm | 3 |
Moderate |
| 5pm | 1.2 |
Low |
| 6pm | 0.3 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Wednesday, September 3rd in Phoenix, AZ is below.
| Time | UV Index | Risk |
|---|---|---|
| 12am | 0 |
Low |
| 1am | 0 |
Low |
| 2am | 0 |
Low |
| 3am | 0 |
Low |
| 4am | 0 |
Low |
| 5am | 0 |
Low |
| 6am | 0 |
Low |
| 7am | 0.3 |
Low |
| 8am | 1.2 |
Low |
| 9am | 3.1 |
Moderate |
| 10am | 5.6 |
Moderate |
| 11am | 8 |
Very High |
| 12pm | 9.6 |
Very High |
| 1pm | 9.6 |
Very High |
| 2pm | 8.1 |
Very High |
| 3pm | 5.7 |
Moderate |
| 4pm | 3.2 |
Moderate |
| 5pm | 1.2 |
Low |
| 6pm | 0.2 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Thursday, September 4th in Phoenix, AZ is below.
| Time | UV Index | Risk |
|---|---|---|
| 12am | 0 |
Low |
| 1am | 0 |
Low |
| 2am | 0 |
Low |
| 3am | 0 |
Low |
| 4am | 0 |
Low |
| 5am | 0 |
Low |