On this page, you can find the current UV Index and hourly 5 day UV Index forecast for Half Moon Bay, San Mateo County, California (CA). The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated daily.
(Updated 47 minutes ago.)
As of 10:47 AM PST, the UV Index in Half Moon Bay, CA is 1.3 (Low).
The UV Index is expected to rise
to 1.9 (still Low) between 11:00 AM - 12:00 PM PST today.
UV Index Data sourced from the NOAA.
As of 10:47 AM PST today in Half Moon Bay, CA, the UV Index is currently at a low level of 1.3. However, as the day progresses, the UV index is expected to rise.
The UV Index will stay low all day, peaking between 12:00 PM and 1:00 PM with a reading of 2.3.
After reaching its peak for the day, the UV Index will gradually decline through the afternoon and evening. The UV Index will return to low levels of 2.2 at 1:00 PM. As the day transitions into the night, the UV Index will drop back down to 0 at 5:00 PM.
| Time Range | UV Index | Risk |
|---|---|---|
| 12:00 AM - 12:00 AM (PST) | 0 - 2.3 | Low |
| Time Range | UV Index | Risk |
|---|---|---|
| 12:00 AM - 12:00 PM (PST) | 0 - 2.3 | Low |
| 12:00 PM - 2:00 PM | 2.5 - 2.7 | Moderate |
| 2:00 PM - 12:00 AM | 0 - 1.6 | Low |
| Time | UV Index | Risk |
|---|---|---|
| 10:00 AM - 11:00 AM (Now, PST) | 1.3 | Low |
| 11:00 AM - 12:00 PM | 1.9 | Low |
| 12:00 PM - 1:00 PM | 2.3 | Low |
| 1:00 PM - 2:00 PM | 2.2 | Low |
| 2:00 PM - 3:00 PM | 1.6 | Low |
| 3:00 PM - 4:00 PM | 0.9 | Low |
| 4:00 PM - 5:00 PM | 0.3 | Low |
| 5:00 PM - 6:00 PM | 0 | Low |
| 6:00 PM - 7:00 PM | 0 | 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 |