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The hourly Portola Valley, CA UV Index forecast for Thursday, May 1st, 2025.
Last Updated 11 hours ago
The UV index forecast for the next five days in Portola Valley, CA has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Portola Valley over the next five days will be 8.2 on Thursday, May 1st at 1:00 pm.
The UV index forecast for Thursday, May 1st in Portola Valley, CA is below.
| Time | UV Index | Risk |
|---|
The UV index forecast for Friday, May 2nd in Portola Valley, 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 | 0.2 |
Low |
| 8am | 0.7 |
Low |
| 9am | 2 |
Low |
| 10am | 3.6 |
Moderate |
| 11am | 4.3 |
Moderate |
| 12pm | 5.9 |
Moderate |
| 1pm | 7 |
High |
| 2pm | 6.4 |
High |
| 3pm | 4.4 |
Moderate |
| 4pm | 4.1 |
Moderate |
| 5pm | 2.2 |
Low |
| 6pm | 0.9 |
Low |
| 7pm | 0.2 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Saturday, May 3rd in Portola Valley, 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 | 0.2 |
Low |
| 9am | 0.8 |
Low |
| 10am | 1.2 |
Low |
| 11am | 1.8 |
Low |
| 12pm | 4 |
Moderate |
| 1pm | 3.4 |
Moderate |
| 2pm | 6.3 |
High |
| 3pm | 5.4 |
Moderate |
| 4pm | 3.8 |
Moderate |
| 5pm | 2.2 |
Low |
| 6pm | 0.9 |
Low |
| 7pm | 0.2 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Sunday, May 4th in Portola Valley, 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 | 0.1 |
Low |
| 8am | 0.6 |
Low |
| 9am | 1.6 |
Low |
| 10am | 3 |
Moderate |
| 11am | 4.9 |
Moderate |
| 12pm | 6.3 |
High |
| 1pm | 7.4 |
High |
| 2pm | 7.1 |
High |
| 3pm | 5.8 |
Moderate |
| 4pm | 4.1 |
Moderate |
| 5pm | 2.3 |
Low |
| 6pm | 1 |
Low |
| 7pm | 0.3 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Monday, May 5th in Portola Valley, 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 |