As of 2:57 PM CDT on May 22, 2026, all 9 cities in Harrison County, MS in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Gulfport, MS with a reading of 9.4.
Over the next 24 hours, the highest UV Index reading in Harrison County, MS is expected to be 10.1 in Long Beach between 1:00 PM - 2:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |