As of 1:12 PM EDT on June 28, 2025, all 8 cities in Colleton County, SC in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Walterboro, SC with a reading of 9.9.
Over the next 24 hours, the highest UV Index reading in Colleton County, SC is expected to be 9.9 in Walterboro 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 |