As of 3:30 PM PDT on October 3, 2026, out of 1591 cities in California in our database, 1561 cities (98%) have a UV Index reading of Moderate, 20 cities (1%) have a UV Index reading of Low, while 10 cities (1%) have a UV Index reading of High. The city with the highest UV Index reading right now is Big Bear City, CA with a reading of 5.6.
Over the next 24 hours, the highest UV Index reading in California is expected to be 8.6 in Campo between 1:00 PM - 2:00 PM PDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |