 The Ben Ferguson Show. Sundays at 7 p.m. on 98.5. The Talk of Delmarva. Delmarva's choice. WGMD. Here is the marine forecast from the Talk of Delmarva Weather Center. The next low tide at Rehoboth Beach will be at 1.20 p.m. The next high tide at 7.58 p.m. And the next low tide at 2.21 a.m.