As of 12:46 PM PDT on April 1, 2025, out of 56 cities in San Diego County, CA in our database, 32 cities (57%) have a UV Index reading of High, 23 cities (41%) have a UV Index reading of Moderate, while 1 city (2%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Jacumba, CA with a reading of 6.9.
Over the next 24 hours, the highest UV Index reading in San Diego County, CA is expected to be 7.4 in Jacumba 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 |