8.6 (Very High)
Last Updated 19 minutes ago
The hourly Los Altos, CA UV Index forecast for Saturday, July 5th, 2025.
Last Updated 1 hour ago
The UV index forecast for the next five days in Los Altos, CA has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Los Altos over the next five days will be 10.3 on Tuesday, July 8th at 1:00 pm.
The UV index forecast for Saturday, July 5th in Los Altos, CA is below.
| Time | UV Index | Risk |
|---|---|---|
| 1pm | 10 |
Very High |
| 2pm | 9.5 |
Very High |
| 3pm | 7.9 |
High |
| 4pm | 5.7 |
Moderate |
| 5pm | 3.2 |
Moderate |
| 6pm | 1.5 |
Low |
| 7pm | 0.4 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Sunday, July 6th in Los Altos, 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 | 0.6 |
Low |
| 9am | 1.4 |
Low |
| 10am | 2.7 |
Low |
| 11am | 4.7 |
Moderate |
| 12pm | 6.6 |
High |
| 1pm | 8 |
Very High |
| 2pm | 7.9 |
High |
| 3pm | 6.9 |
High |
| 4pm | 4.8 |
Moderate |
| 5pm | 2.8 |
Low |
| 6pm | 1.3 |
Low |
| 7pm | 0.4 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Monday, July 7th in Los Altos, 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 | 0.6 |
Low |
| 9am | 1.6 |
Low |
| 10am | 3.2 |
Moderate |
| 11am | 5.2 |
Moderate |
| 12pm | 7.2 |
High |
| 1pm | 8.8 |
Very High |
| 2pm | 8.8 |
Very High |
| 3pm | 7.6 |
High |
| 4pm | 5.5 |
Moderate |
| 5pm | 3.3 |
Moderate |
| 6pm | 1.5 |
Low |
| 7pm | 0.5 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Tuesday, July 8th in Los Altos, 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 | 0.3 |
Low |
| 8am | 1 |
Low |
| 9am | 2 |
Low |
| 10am | 3.4 |
Moderate |
| 11am | 5.6 |
Moderate |
| 12pm | 8 |
Very High |
| 1pm | 10.3 |
Very High |
| 2pm | 9.8 |
Very High |
| 3pm | 8.2 |
Very High |
| 4pm | 5.9 |
Moderate |
| 5pm | 3.4 |
Moderate |
| 6pm | 1.6 |
Low |
| 7pm | 0.5 |
Low |
| 8pm | 0 |
Low |
| 9pm | 0 |
Low |
| 10pm | 0 |
Low |
| 11pm | 0 |
Low |
The UV index forecast for Wednesday, July 9th in Los Altos, 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 |