South Santee River - Intracoastal Waterway Crossing UV IndexUnited StatesSCCharleston CountySouth Santee River - Intracoastal Waterway Crossing1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAASouth Santee River - Intracoastal Waterway Crossing UV forecast issued yesterday at 3:17 pm. Next forecast at approx. 3:17 pm.Get an account to remove ads