As of 10:22 AM PDT on April 3, 2026, out of 1591 cities in California in our database, 1585 cities (100%) have a UV Index reading of Moderate, while 6 cities (0%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Campo, CA with a reading of 4.5.
Over the next 24 hours, the highest UV Index reading in California is expected to be 9.4 in Mono City between 1:00 PM - 2:00 PM PDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |