0 (Low)
Last Updated 53 minutes ago
The hourly Hayward, CA UV Index forecast for Friday, December 26th, 2025.
Last Updated 1 day ago
The UV index forecast for the next five days in Hayward, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Hayward over the next five days will be 1.8 on Sunday, December 28th at 1:00 pm.
The UV index forecast for Friday, December 26th in Hayward, CA is below.
| Time | UV Index | Risk |
|---|
The UV index forecast for Saturday, December 27th in Hayward, 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 | 0.1 |
Low |
| 9am | 0.3 |
Low |
| 10am | 0.6 |
Low |
| 11am | 1 |
Low |
| 12pm | 1.3 |
Low |
| 1pm | 1.5 |
Low |
| 2pm | 1.2 |
Low |
| 3pm | 0.6 |
Low |
| 4pm | 0.2 |
Low |
| 5pm | 0 |
Low |
| 6pm | 0 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Sunday, December 28th in Hayward, 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 | 0.1 |
Low |
| 9am | 0.4 |
Low |
| 10am | 1 |
Low |
| 11am | 1.4 |
Low |
| 12pm | 1.7 |
Low |
| 1pm | 1.8 |
Low |
| 2pm | 1.2 |
Low |
| 3pm | 0.6 |
Low |
| 4pm | 0.2 |
Low |
| 5pm | 0 |
Low |
| 6pm | 0 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Monday, December 29th in Hayward, CA is below.
| Time | UV Index | Risk |
|---|---|---|
| 12am | 0 |
Low |
| 1am | 0 |
Low |
| 2am | 0 |
Low |
| 3am | 0 |
Low |
| 4am | 0 |
Low |