Tides Today & Tomorrow in Charleston, SC

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Charleston, SC.
Next low tide : in 4h 56m at 10:48 pm (1.0 ft)
Next high tide (tomorrow) : 4:24 am (4.3 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8665530
Common Questions About Tides

Charleston, SC Tides - Oct 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:105.12:535.68:171.49:111.57:147:04First Quarter1Thu
2Fri3:035.13:445.69:121.410:031.57:147:03First Quarter2Fri
3Sat3:575.14:365.710:071.410:521.47:157:01Waxing Gibbous3Sat
4Sun4:505.35:265.810:591.311:381.27:167:00Waxing Gibbous4Sun
5Mon5:415.56:135.911:491.17:166:59Waxing Gibbous5Mon
6Tue6:285.76:566.012:211.012:360.97:176:57Waxing Gibbous6Tue
7Wed7:105.97:366.01:020.81:210.87:186:56Full Moon7Wed
8Thu7:506.18:146.01:410.62:050.77:186:55Full Moon8Thu
9Fri8:286.38:516.02:200.42:480.67:196:54Full Moon9Fri
10Sat9:056.49:295.93:000.33:310.67:206:52Full Moon10Sat
11Sun9:456.410:105.83:410.34:160.67:216:51Waning Gibbous11Sun
12Mon10:286.510:555.64:240.25:030.77:216:50Waning Gibbous12Mon
13Tue11:176.411:475.55:100.35:540.87:226:49Waning Gibbous13Tue
14Wed12:136.36:020.46:510.97:236:47Third Quarter14Wed
15Thu12:485.41:176.37:000.57:530.97:246:46Third Quarter15Thu
16Fri1:555.42:246.28:050.68:570.97:246:45Third Quarter16Fri
17Sat3:045.53:306.39:120.59:590.77:256:44Third Quarter17Sat
18Sun4:105.84:356.310:170.410:580.57:266:43Waning Crescent18Sun
19Mon5:146.05:356.411:200.311:540.27:276:42Waning Crescent19Mon
20Tue6:136.46:306.412:190.17:276:40Waning Crescent20Tue
21Wed7:066.67:206.412:460.01:150.07:286:39New Moon21Wed
22Thu7:566.88:076.31:35-0.12:06-0.17:296:38New Moon22Thu
23Fri8:436.88:536.22:21-0.12:560.07:306:37New Moon23Fri
24Sat9:296.79:385.93:060.03:430.17:316:36New Moon24Sat
25Sun10:136.610:225.73:490.24:290.47:316:35Waxing Crescent25Sun
26Mon10:576.311:065.54:300.45:130.67:326:34Waxing Crescent26Mon
27Tue11:416.011:515.35:110.75:580.97:336:33Waxing Crescent27Tue
28Wed12:275.85:531.06:441.27:346:32Waxing Crescent28Wed
29Thu12:395.11:155.66:391.37:341.47:356:31First Quarter29Thu
30Fri1:305.02:065.57:301.48:251.47:356:30First Quarter30Fri
31Sat2:235.02:575.48:261.59:151.47:366:29First Quarter31Sat
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 1:36 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 71% 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 (71% 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