As of 12:23 AM EDT on October 4, 2026, all 146 cities in Suffolk County, NY 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 Suffolk County, NY is expected to be 2.7 in Fishers Island between 11:00 AM - 12:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |