King Tide is a commonly used term describing high tides that are higher than normal. They usually occur during a full or new moon or during specific seasons throughout the year. Charleston’s average high tide range is about 5.5 ft., but during a King Tide event, it can reach 7 ft. or higher.
King Tides can cause flooding in low-lying areas resulting in road closures on Seabrook Island as well as the Johns Island and Charleston areas. This is particularly true when a king tide coincides with significant rain and/or wind.
The 2025 predicted tides are:
- March 30
- April 26 – 29
- May 25 – 27
- October 7 – 11
- November 4 – 9
- December 3 – 6
Remember to clear debris blocking the drains near your home before predicted King Tides, and if your home is prone to flooding, you might want to prepare your ground level for flooding.
Please use caution in areas that are impacted by flooding. It takes just 12 inches of water to carry away most cars, and just 2 feet of rushing water can carry away SUVs and trucks. Never drive around barricades or on streets where you can’t see the road. Manhole covers may pop up due to the water pressure under the road.
Turn around, don’t drown.
Click here for more information from South Carolina Department of Environmental Services.
–Tidelines Editors