Myrtle Beach Offshore Fishing

Myrtle Beach sits along the Grand Strand of South Carolina, with Little River Inlet to the north and Murrells Inlet to the south providing ocean access. The continental shelf here is moderately wide — roughly 55-65 miles to the shelf break — but productive live-bottom habitat, artificial reefs, and natural ledge systems make the mid-shelf grounds highly fishable. The Georgetown Hole, a deepwater depression 30 miles offshore, concentrates bait and pelagic species. Beyond the shelf edge, the Gulf Stream brings warm blue water and its associated pelagic fishery within a long but achievable day trip. The Grand Strand fleet focuses on king mackerel tournaments, bottom fishing, and blue-water trips when the Stream cooperates.

King mackerel are Myrtle Beach's bread-and-butter offshore species, arriving in April and producing through October with peaks during the spring and fall runs. Fish from 20 to 50 pounds stack up on the live-bottom areas at 60-90 feet, feeding on menhaden, bluefish, and Spanish mackerel. Cobia migrate through from April through June, often found near buoys, rays, and floating debris. Bottom fishing on the live-bottom and ledge systems produces grouper, vermilion snapper, triggerfish, and amberjack from April through November. When conditions allow the full run to the Gulf Stream edge, wahoo, mahi-mahi, and yellowfin tuna are available from May through October. Mahi-mahi sometimes push inshore with weedlines, making them accessible on shorter trips.

Myrtle Beach's wider shelf means mid-shelf temperature patterns are as important as Gulf Stream position for day-to-day fishing success. On SST charts, monitor the temperature at the 60-90 foot contour where the live-bottom habitat concentrates — when these areas reach 72-74 degrees in spring, king mackerel and cobia activity accelerates. The Georgetown Hole shows as a subtle temperature anomaly caused by its deeper water retaining different temperatures than the surrounding shelf. For blue-water trips, the Gulf Stream edge needs to be within 65 miles for a practical day trip, and SST charts clearly show the western wall's position. Look for warm-water fingers pushing inside the shelf edge, as these intrusions bring mahi and wahoo within easier reach.

Rigline helps Myrtle Beach anglers decide whether to fish the productive mid-shelf grounds or commit to the longer Gulf Stream run. Our SST analytics show temperature patterns across the entire shelf, identifying which live-bottom areas are holding the warmest water and concentrating king mackerel. When you do run to the edge, Rigline's Gulf Stream position data pinpoints where warm water pushes closest to the Grand Strand, shortening the run to productive blue water.