As of 12:52 PM PDT on April 1, 2025, out of 28 cities in San Joaquin County, CA in our database, 24 cities (86%) have a UV Index reading of Low, while 4 cities (14%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Terminous, CA with a reading of 3.8.
Over the next 24 hours, the highest UV Index reading in San Joaquin County, CA is expected to be 4.9 in Tracy between 2:00 PM - 3:00 PM PDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |