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 26 minutes ago.)
As of 3:26 PM
PDT, the UV Index in Tamalpais-Homestead Valley, CA is 4.2 (Moderate).
The UV Index is expected to fall
to 2.8 (still Moderate) between 4:00 PM - 5:00 PM
PDT today.
UV Index Data sourced from the NOAA.
As of 3:26 PM PDT today in Tamalpais-Homestead Valley, CA, the UV Index is currently at a moderate level of 4.2. 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 - 11:00 AM (PDT) | 0 - 2.1 | Low |
| 11:00 AM - 1:00 PM | 3.8 - 5.2 | Moderate |
| 1:00 PM - 2:00 PM | 5.8 | High |
| 2:00 PM - 5:00 PM | 2.8 - 5.2 | Moderate |
| 5:00 PM - 12:00 AM | 0 - 1.3 | Low |
| Time Range | UV Index | Risk |
|---|---|---|
| 12:00 AM - 11:00 AM (PDT) | 0 - 2.1 | Low |
| 11:00 AM - 5:00 PM | 2.5 - 5.3 | Moderate |
| 5:00 PM - 12:00 AM | 0 - 1.2 | Low |
| Time | UV Index | Risk |
|---|---|---|
| 3:00 PM - 4:00 PM (Now, PDT) | 4.2 | Moderate |
| 4:00 PM - 5:00 PM | 2.8 | Moderate |
| 5:00 PM - 6:00 PM | 1.3 | 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 |