As of 8:53 AM PST on December 22, 2025, all 1591 cities in California in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Blythe, CA with a reading of 0.5.
Over the next 24 hours, the highest UV Index reading in California is expected to be 3.3 in Campo between 12:00 PM - 1:00 PM PST today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |