As of 10:49 PM AKDT on August 11, 2025, all 38 cities in Yukon-Koyukuk Census Area, AK 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 Yukon-Koyukuk Census Area, AK is expected to be 3.8 in Nikolai between 3:00 PM - 4:00 PM AKDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |