Tides Today & Tomorrow in Charleston, SC

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in Charleston, SC.
Next low tide : in 21m at 11:25 am (0.6 ft)
Next high tide : 6:08 pm (5.5 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 - Oct 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:146.011:385.44:580.75:361.27:137:04Waning Gibbous1Sat
2Sun11:565.85:361.06:191.47:147:03Waning Gibbous2Sun
3Mon12:225.212:405.76:171.27:051.67:157:02Third Quarter3Mon
4Tue1:105.01:295.67:041.37:561.77:157:00Third Quarter4Tue
5Wed2:024.92:215.57:561.48:491.77:166:59Third Quarter5Wed
6Thu2:555.03:145.68:521.49:411.67:176:58Third Quarter6Thu
7Fri3:505.14:085.79:491.310:321.47:186:56Waning Crescent7Fri
8Sat4:445.35:025.810:461.111:221.17:186:55Waning Crescent8Sat
9Sun5:375.65:526.011:410.87:196:54Waning Crescent9Sun
10Mon6:265.96:396.212:090.812:340.67:206:53Waning Crescent10Mon
11Tue7:126.37:246.312:560.51:250.37:206:51New Moon11Tue
12Wed7:576.68:106.31:410.22:150.17:216:50New Moon12Wed
13Thu8:436.88:576.32:270.03:060.07:226:49New Moon13Thu
14Fri9:336.99:476.23:15-0.23:560.07:236:48Waxing Crescent14Fri
15Sat10:256.910:406.04:03-0.24:480.17:236:47Waxing Crescent15Sat
16Sun11:216.811:375.94:53-0.15:420.37:246:45Waxing Crescent16Sun
17Mon12:226.65:470.16:400.57:256:44Waxing Crescent17Mon
18Tue12:395.71:266.56:470.47:420.67:266:43First Quarter18Tue
19Wed1:455.62:306.37:520.68:450.77:266:42First Quarter19Wed
20Thu2:505.63:326.28:590.79:450.67:276:41First Quarter20Thu
21Fri3:545.74:316.210:030.710:420.57:286:40Waxing Gibbous21Fri
22Sat4:545.95:276.111:050.611:350.47:296:39Waxing Gibbous22Sat
23Sun5:506.16:186.112:020.57:306:37Waxing Gibbous23Sun
24Mon6:406.27:036.112:240.312:540.47:306:36Waxing Gibbous24Mon
25Tue7:256.47:466.01:090.21:420.47:316:35Full Moon25Tue
26Wed8:066.48:265.91:520.22:270.57:326:34Full Moon26Wed
27Thu8:466.49:065.72:320.33:090.57:336:33Full Moon27Thu
28Fri9:246.39:455.63:110.43:490.77:346:32Full Moon28Fri
29Sat10:016.210:255.43:480.54:280.97:356:31Waning Gibbous29Sat
30Sun9:386.010:055.23:240.74:051.06:355:30Waning Gibbous30Sun
31Mon10:165.810:465.04:000.94:431.26:365:29Waning Gibbous31Mon
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 2:46 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 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