South Carolina to Face Coastal Flooding Through October 28

King tides and gusty northeasterly winds will combine to cause tidal flooding across the South Carolina coast this week.

Updated on Oct. 23, 2026 in Current Conditions

South Carolina to Face Coastal Flooding Through October 28

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Is now a good time to review your local emergency plan for coastal tidal flooding?

South Carolina coastal areas will experience recurring tidal flooding from October 24 through October 28 due to a combination of king tides and onshore winds. Morning high tides are expected to bring the highest water levels throughout this multi-day period.

Why it matters

The combination of the year's highest astronomical tides and persistent northeasterly winds creates a pressure gradient that pushes seawater onto land, worsening flood impacts. This weather pattern significantly increases the risk of coastal inundation and beach erosion for residents living along the state shoreline.

Peak wind gusts will reach 35-40 mph along the coast, while inland areas anticipate gusts between 30-35 mph. Coastal water temperatures currently sit in the 60s Fahrenheit as king tides peak over this five-day window.

The details

High pressure to the north is driving northeasterly winds that exacerbate the tidal flooding already occurring during this period of king tides. Residents in coastal areas should prepare for higher water levels during each morning high tide compared to evening cycles, with the peak of the event expected on October 26.

Cooler air began moving into South Carolina on October 22, 2026.
A full moon occurs on the night of October 25, 2026.
The morning high tide on October 26, 2026, is expected to bring the highest water levels.
Tidal flooding is projected to persist through October 28, 2026.

Seasonal Patterns

This coastal flooding event aligns with the monitoring protocols established by the National Weather Service Coastal Flood Advisory thresholds. It reflects the predictable, yet heightened, impact of annual king tides when coupled with specific seasonal pressure gradients.

Residents along the coast should monitor local tide charts to plan travel around high water times and avoid driving through flooded roads. Property owners should secure outdoor items that may be affected by gusty winds of up to 40 mph.

The takeaway

King tides occur annually, but their impact is significantly magnified when paired with sustained northeasterly winds. Checking the local tide table each morning will help residents safely navigate the highest water levels during this coastal event.