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Last Updated 7 minutes ago
The hourly Vallejo, CA UV Index forecast for Friday, December 12th, 2025.
Last Updated 1 day ago
The UV index forecast for the next five days in Vallejo, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Vallejo over the next five days will be 2.3 on Sunday, December 14th at 12:00 pm.
The UV index forecast for Friday, December 12th in Vallejo, CA is below.
| Time | UV Index | Risk |
|---|---|---|
| 6pm | 0 |
Low |
| 7pm | 0 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Saturday, December 13th in Vallejo, 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 | 0.5 |
Low |
| 10am | 1.2 |
Low |
| 11am | 1.8 |
Low |
| 12pm | 2.2 |
Low |
| 1pm | 2 |
Low |
| 2pm | 1.4 |
Low |
| 3pm | 0.8 |
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 14th in Vallejo, 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 | 0.6 |
Low |
| 10am | 1.2 |
Low |
| 11am | 1.9 |
Low |
| 12pm | 2.3 |
Low |
| 1pm | 2.1 |
Low |
| 2pm | 1.4 |
Low |
| 3pm | 0.7 |
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 15th in Vallejo, CA is below.
| Time | UV Index | Risk |
|---|---|---|
| 12am | 0 |
Low |
| 1am | 0 |
Low |
| 2am | 0 |
Low |
| 3am | 0 |
Low |
| 4am | 0 |
Low |