On this page, you can find the current UV Index and hourly 5 day UV Index forecast for Tamalpais-Homestead Valley, Marin County, California (CA). The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated daily.
(Updated 8 minutes ago.)
As of 3:08 PM
PDT, the UV Index in Tamalpais-Homestead Valley, CA is 4.9 (Moderate).
The UV Index is expected to fall
sharply
to 3.1 (still Moderate) between 4:00 PM - 5:00 PM
PDT today.
UV Index Data sourced from the NOAA.
As of 3:08 PM PDT today in Tamalpais-Homestead Valley, CA, the UV Index is currently at a moderate level of 4.9. As the day progresses, the UV index is expected to fall as the sun sets.
It will return to moderate levels at 4:00 PM and then drop to low levels again from 5:00 PM onwards. As the day transitions into the night, the UV Index will drop back down to 0 at 7:00 PM.
| Time Range | UV Index | Risk |
|---|---|---|
| 6:00 AM - 10:00 AM (PDT) | 0 - 1.1 | Low |
| 10:00 AM - 12:00 PM | 2.5 - 4.3 | Moderate |
| 12:00 PM - 3:00 PM | 5.9 - 6.6 | High |
| 3:00 PM - 5:00 PM | 3.1 - 4.9 | Moderate |
| 5:00 PM - 12:00 AM | 0 - 1.4 | Low |
| Time Range | UV Index | Risk |
|---|---|---|
| 12:00 AM - 11:00 AM (PDT) | 0 - 2.4 | Low |
| 11:00 AM - 12:00 PM | 4.3 | Moderate |
| 12:00 PM - 3:00 PM | 5.9 - 6.6 | High |
| 3:00 PM - 5:00 PM | 3.1 - 4.9 | Moderate |
| 5:00 PM - 12:00 AM | 0 - 1.4 | Low |
| Time | UV Index | Risk |
|---|---|---|
| 3:00 PM - 4:00 PM (Now, PDT) | 4.9 | Moderate |
| 4:00 PM - 5:00 PM | 3.1 | Moderate |
| 5:00 PM - 6:00 PM | 1.4 | Low |
| 6:00 PM - 7:00 PM | 0.4 | Low |
| 7:00 PM - 8:00 PM | 0 | Low |
| 8:00 PM - 9:00 PM | 0 | Low |
| 9:00 PM - 10:00 PM | 0 | Low |
| 10:00 PM - 11:00 PM | 0 | Low |
| 11:00 PM - 12:00 AM | 0 | Low |