Tides Today & Tomorrow in Charleston, SC

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Charleston, SC.
Next low tide : in 3h 29m at 10:28 pm (0.7 ft)
Next high tide (tomorrow) : 4:13 am (4.5 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:12 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8665530
Common Questions About Tides

Charleston, SC Tides - Sep 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:384.95:245.710:431.011:391.26:547:44Waxing Gibbous1Fri
2Sat5:315.06:135.811:350.96:557:43Waxing Gibbous2Sat
3Sun6:215.26:576.012:251.012:240.76:557:41Waxing Gibbous3Sun
4Mon7:065.47:386.11:090.81:100.56:567:40Full Moon4Mon
5Tue7:485.68:186.21:500.51:560.46:577:39Full Moon5Tue
6Wed8:295.78:566.22:310.42:410.36:577:37Full Moon6Wed
7Thu9:105.99:366.23:120.23:270.26:587:36Full Moon7Thu
8Fri9:526.010:176.13:530.14:130.36:597:35Waning Gibbous8Fri
9Sat10:386.211:025.94:350.05:020.46:597:33Waning Gibbous9Sat
10Sun11:276.211:525.75:200.05:540.57:007:32Waning Gibbous10Sun
11Mon12:236.26:100.16:530.77:017:31Third Quarter11Mon
12Tue12:505.51:256.27:050.27:570.97:017:29Third Quarter12Tue
13Wed1:545.42:316.28:060.39:030.97:027:28Third Quarter13Wed
14Thu3:005.43:376.39:100.310:070.87:027:27Third Quarter14Thu
15Fri4:075.44:436.410:150.311:090.67:037:25Waning Crescent15Fri
16Sat5:135.65:456.511:170.27:047:24Waning Crescent16Sat
17Sun6:145.86:416.612:060.412:170.17:047:23Waning Crescent17Sun
18Mon7:086.17:306.612:590.31:120.07:057:21New Moon18Mon
19Tue7:596.28:166.51:480.12:040.07:067:20New Moon19Tue
20Wed8:466.39:006.42:340.12:530.07:067:19New Moon20Wed
21Thu9:326.39:426.23:170.23:400.27:077:17New Moon21Thu
22Fri10:166.210:235.93:580.34:250.47:087:16Waxing Crescent22Fri
23Sat10:586.111:045.74:360.55:080.77:087:15Waxing Crescent23Sat
24Sun11:415.911:465.45:140.85:521.07:097:13Waxing Crescent24Sun
25Mon12:255.85:521.06:381.37:107:12Waxing Crescent25Mon
26Tue12:315.21:115.66:331.27:271.57:107:11First Quarter26Tue
27Wed1:195.02:015.57:191.48:201.67:117:09First Quarter27Wed
28Thu2:115.02:535.58:111.59:131.67:127:08First Quarter28Thu
29Fri3:045.03:475.69:071.510:061.57:127:06First Quarter29Fri
30Sat3:595.04:405.710:031.410:561.47:137:05Waxing Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665530)

Common Questions About Charleston, SC Tides

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

Slack tide in Charleston, SC is approximately 1:20 am — 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 67% 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 First Quarter (67% 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