As of 8:44 PM EDT on August 19, 2025, all 79 cities in Delaware 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 Delaware is expected to be 8.2 in Slaughter Beach between 1:00 PM - 2:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |