As of 10:06 AM EDT on May 30, 2026, out of 131 cities in Nassau County, NY in our database, 121 cities (92%) have a UV Index reading of Moderate, while 10 cities (8%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Bayville, NY with a reading of 3.6.
Over the next 24 hours, the highest UV Index reading in Nassau County, NY is expected to be 6.6 in Long Beach between 1:00 PM - 2:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |