As of 8:28 PM PDT on September 17, 2025, all 18 cities in Imperial County, CA in our database have a UV Index reading of 0, indicating no radiation from the sun.
Over the next 24 hours, the highest UV Index reading in Imperial County, CA is expected to be 8.8 in Winterhaven between 1:00 PM - 2:00 PM MST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |