Tides Today & Tomorrow in Charleston, SC

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Charleston, SC.
Next low tide : in 3h 07m at 10:36 am (0.6 ft)
Next high tide : 5:19 pm (5.4 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8665530
Common Questions About Tides

Charleston, SC Tides - Sep 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:035.13:565.99:280.510:300.96:547:45Waxing Gibbous1Sat
2Sun4:095.25:026.210:320.311:300.56:547:44Waxing Gibbous2Sun
3Mon5:175.56:056.511:360.06:557:42Waxing Gibbous3Mon
4Tue6:215.87:036.812:280.212:37-0.26:567:41Waxing Gibbous4Tue
5Wed7:206.17:576.91:22-0.21:36-0.46:567:40Full Moon5Wed
6Thu8:166.48:506.92:15-0.52:32-0.66:577:38Full Moon6Thu
7Fri9:126.69:436.83:05-0.63:27-0.56:577:37Full Moon7Fri
8Sat10:086.710:366.63:55-0.64:21-0.46:587:36Waning Gibbous8Sat
9Sun11:036.611:296.34:44-0.55:15-0.16:597:35Waning Gibbous9Sun
10Mon11:586.55:33-0.36:110.36:597:33Waning Gibbous10Mon
11Tue12:225.912:546.36:250.07:090.67:007:32Third Quarter11Tue
12Wed1:175.61:516.17:190.38:100.97:017:31Third Quarter12Wed
13Thu2:135.42:476.08:160.69:101.17:017:29Third Quarter13Thu
14Fri3:085.23:415.99:120.810:071.27:027:28Third Quarter14Fri
15Sat4:045.24:355.810:080.911:001.27:037:26Waning Crescent15Sat
16Sun4:585.25:265.911:010.911:491.17:037:25Waning Crescent16Sun
17Mon5:495.46:125.911:520.87:047:24Waning Crescent17Mon
18Tue6:365.56:556.012:341.012:390.77:047:22Waning Crescent18Tue
19Wed7:205.77:356.11:150.91:230.77:057:21New Moon19Wed
20Thu8:015.88:126.01:530.82:050.67:067:20New Moon20Thu
21Fri8:405.88:496.02:290.82:450.67:067:18New Moon21Fri
22Sat9:175.89:235.93:020.73:240.77:077:17New Moon22Sat
23Sun9:525.89:565.73:350.74:020.87:087:16Waxing Crescent23Sun
24Mon10:235.810:295.64:080.74:410.97:087:14Waxing Crescent24Mon
25Tue10:565.811:055.44:430.85:231.07:097:13Waxing Crescent25Tue
26Wed11:345.811:485.35:220.86:091.27:107:12Waxing Crescent26Wed
27Thu12:225.96:080.87:021.27:107:10First Quarter27Thu
28Fri12:395.31:205.97:010.98:021.27:117:09First Quarter28Fri
29Sat1:395.32:266.08:030.89:041.17:127:08First Quarter29Sat
30Sun2:455.43:346.19:090.710:070.97:127:06First Quarter30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665530)

Common Questions About Charleston, SC Tides

Show All
What time does the tide turn (slack tide) in Charleston, SC today?

Slack tide in Charleston, SC is approximately 1:57 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Charleston, SC?

Charleston, SC is currently in a transitional phase. Tonight's moon is 79% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Charleston, SC tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Charleston, SC?

Tide predictions for Charleston, SC come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Charleston, SC?

Tide data for Charleston, SC is sourced from NOAA Station #8665530. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8665530.

What is the moon phase in Charleston, SC tonight?

Tonight the moon over Charleston, SC is Waxing Gibbous (79% illuminated). This places Charleston, SC in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA