Here's a fuller list of suggestions...
Browning, Robert M., Jr. Success Is All That Was Expected: The South Atlantic Blockading Squadron During the Civil War. Washington: Brassey's Inc., 2002. 359 pp.
Durham, Roger S. Guardian of Savannah: Fort McAllister, Georgia, in the Civil War and Beyond. Columbia SC: Univ. of South Carolina Press, 2008. 282 pp.
Hunter, Alvah F. and Symonds, Craig L. (ed.) Year on a Monitor and the Destruction of Fort Sumter, A. Columbia, S.C.: Univ. of South Carolina Press, 1987. 208 pp.
Keeler, William F. and Daly, Robert W. (ed.) Aboard the USS Florida, 1863-65. Annapolis: US Naval Institute, 1968. 252 pp.
Marchand, John B. and Symonds, Craig L. (ed.) Charleston Blockade: The Journals of John B. Marchand, US Navy 1861-1862. Newport, R.I.: Naval War College, 1976. 287 pp.
Melton, Maurice. Best Station of Them All, The: The Savannah Squadron, 1861-1865. Tuscaloosa, Ala.: Univ. of Alabama Press, 2012. 423 pp.
and the aforementioned
Wise, Stephen R. Gate of Hell: Campaign for Charleston, 1863. Columbia, S.C.: Univ. of South Carolina Press, 1994. 312 pp.
I'd also recommend this one, though it's not confined strictly to your intended area:
Roberts, William H. Now for the Contest: Coastal and Oceanic Naval Operations in the Civil War. Lincoln, Nebraska: Univ. of Nebraska Press, 2004. 223 pp.
And bios of the principal Union admirals:
Weddle, Kevin J. Lincoln's Tragic Admiral: The Life of Samuel Francis Du Pont. Charlottesville, Va.: Univ. of Virginia Press, 2005. 269 pp.
Schneller, Robert J., Jr. Quest for Glory, A: A Biography of Rear Admiral John A. Dahlgren. Annapolis: Naval Institute Press, 1995. 452 pp.
One that might be a little hard to find, but interesting:
Carse, Robert. Department of the South: Hilton Head Island in the Civil War. Columbia, S.C.: State Printing Company, 1961. 150 pp.
And one I haven't read yet:
Simmons, Rick. Defending South Carolina's Coast: The Civil War from Georgetown to Little River. Charleston, S.C.: History Press, 2009. 192 pp.