0 (Low)
Last Updated 15 minutes ago
The hourly San Antonio Heights, CA UV Index forecast for Wednesday, September 17th, 2025.
Last Updated 13 hours ago
The UV index forecast for the next five days in San Antonio Heights, CA has no days reaching the extreme level and 2 days reaching the high or very high levels. The peak UV intensity in San Antonio Heights over the next five days will be 7.1 on Thursday, September 18th at 2:00 pm.
The UV index forecast for Wednesday, September 17th in San Antonio Heights, CA is below.
| Time | UV Index | Risk |
|---|---|---|
| 1am | 0 |
Low |
| 2am | 0 |
Low |
| 3am | 0 |
Low |
| 4am | 0 |
Low |
| 5am | 0 |
Low |
| 6am | 0 |
Low |
| 7am | 0 |
Low |
| 8am | 0.4 |
Low |
| 9am | 1.3 |
Low |
| 10am | 3.1 |
Moderate |
| 11am | 5 |
Moderate |
| 12pm | 7 |
High |
| 1pm | 6.7 |
High |
| 2pm | 6.7 |
High |
| 3pm | 4.5 |
Moderate |
| 4pm | 2.5 |
Low |
| 5pm | 0.8 |
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 18th in San Antonio Heights, CA 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 |
Low |
| 8am | 0.4 |
Low |
| 9am | 1.4 |
Low |
| 10am | 3 |
Moderate |
| 11am | 4.7 |
Moderate |
| 12pm | 5.4 |
Moderate |
| 1pm | 6.9 |
High |
| 2pm | 7.1 |
High |
| 3pm | 5.1 |
Moderate |
| 4pm | 3 |
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 Friday, September 19th in San Antonio Heights, CA 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 |
Low |
| 8am | 0 |
Low |
| 9am | 0.2 |
Low |
| 10am | 0.3 |
Low |
| 11am | 0.4 |
Low |
| 12pm | 0.6 |
Low |
| 1pm | 1 |
Low |
| 2pm | 1.5 |
Low |
| 3pm | 1.8 |
Low |
| 4pm | 1.5 |
Low |
| 5pm | 1 |
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 Saturday, September 20th in San Antonio Heights, CA is below.
| Time | UV Index | Risk |
|---|---|---|
| 12am | 0 |
Low |
| 1am | 0 |
Low |
| 2am | 0 |
Low |
| 3am | 0 |
Low |
| 4am | 0 |
Low |
| 5am | 0 |
Low |