Tides Today & Tomorrow in Charleston, SC

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Charleston, SC.
Next low tide : 11:25 am (0.6 ft)
Next high tide : in 1h 12m at 5:18 am (4.3 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8665530
Common Questions About Tides

Charleston, SC Tides - Mar 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:124.76:300.06:37-0.26:476:16Third Quarter1Wed
2Thu12:585.21:194.67:350.17:42-0.26:466:17Third Quarter2Thu
3Fri2:105.32:304.68:420.18:51-0.26:456:18Third Quarter3Fri
4Sat3:245.43:434.89:47-0.19:59-0.46:436:19Waning Crescent4Sat
5Sun4:335.64:515.110:49-0.411:03-0.66:426:19Waning Crescent5Sun
6Mon5:345.85:515.411:45-0.66:416:20Waning Crescent6Mon
7Tue6:286.06:445.712:02-0.912:37-0.96:406:21New Moon7Tue
8Wed7:186.07:345.912:57-1.01:26-1.06:386:22New Moon8Wed
9Thu8:056.08:225.91:48-1.02:12-1.06:376:22New Moon9Thu
10Fri8:505.89:075.92:37-0.92:56-0.96:366:23New Moon10Fri
11Sat9:335.59:515.73:23-0.73:38-0.76:356:24Waxing Crescent11Sat
12Sun10:165.210:335.54:08-0.44:18-0.46:336:25Waxing Crescent12Sun
13Mon10:594.911:175.34:530.05:000.06:326:25Waxing Crescent13Mon
14Tue11:454.65:400.45:430.36:316:26Waxing Crescent14Tue
15Wed12:035.012:344.46:310.76:320.66:296:27First Quarter15Wed
16Thu12:534.81:274.37:250.97:250.76:286:28First Quarter16Thu
17Fri1:474.72:224.28:201.08:220.86:276:28First Quarter17Fri
18Sat2:434.73:204.39:150.99:190.76:266:29First Quarter18Sat
19Sun3:414.84:164.510:070.810:140.56:246:30Waxing Gibbous19Sun
20Mon4:364.95:084.710:550.611:060.36:236:31Waxing Gibbous20Mon
21Tue5:255.15:545.011:390.411:540.16:226:31Waxing Gibbous21Tue
22Wed6:085.36:365.312:200.16:206:32Waxing Gibbous22Wed
23Thu6:485.47:155.512:39-0.212:59-0.16:196:33Full Moon23Thu
24Fri7:275.57:535.71:24-0.41:38-0.36:186:33Full Moon24Fri
25Sat8:055.58:315.82:08-0.52:18-0.46:166:34Full Moon25Sat
26Sun8:455.49:115.92:52-0.52:59-0.56:156:35Waning Gibbous26Sun
27Mon9:285.39:565.93:38-0.53:43-0.56:146:36Waning Gibbous27Mon
28Tue10:155.210:465.84:27-0.34:30-0.36:126:36Waning Gibbous28Tue
29Wed11:085.011:455.75:20-0.25:23-0.26:116:37Waning Gibbous29Wed
30Thu12:104.96:190.06:240.06:106:38Third Quarter30Thu
31Fri12:525.61:184.97:230.17:310.16:086:38Third Quarter31Fri
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 8:21 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 spring phase. Tonight's moon is 86% 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 near their weekly maximum.

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 (86% illuminated). This places Charleston, SC in a spring tide cycle, so tidal ranges are near their weekly maximum 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