As of 4:41 PM PST on November 4, 2025, all 56 cities in San Diego County, CA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Camp Pendleton South, CA with a reading of 0.5.
Over the next 24 hours, the highest UV Index reading in San Diego County, CA is expected to be 5.6 in Campo between 12:00 PM - 1:00 PM PST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |