Tides Today & Tomorrow in Charleston, SC

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Charleston, SC.
Next low tide (tomorrow) : in 5h 10m at 4:23 am (0.3 ft)
Next high tide (tomorrow) : 10:18 am (5.0 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8665530
Common Questions About Tides

Charleston, SC Tides - Aug 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:304.35:065.410:280.611:381.16:338:18Waning Crescent1Tue
2Wed5:264.35:585.611:220.56:338:18Waning Crescent2Wed
3Thu6:194.46:485.912:290.912:150.36:348:17Waning Crescent3Thu
4Fri7:094.67:356.11:170.71:070.16:358:16New Moon4Fri
5Sat7:564.88:206.22:040.41:58-0.16:358:15New Moon5Sat
6Sun8:455.19:066.32:490.22:48-0.36:368:14New Moon6Sun
7Mon9:345.39:536.33:340.03:39-0.36:378:13New Moon7Mon
8Tue10:255.510:406.24:18-0.24:31-0.36:378:12Waxing Crescent8Tue
9Wed11:185.611:286.05:03-0.35:24-0.16:388:11Waxing Crescent9Wed
10Thu12:135.85:49-0.36:200.16:398:10Waxing Crescent10Thu
11Fri12:205.71:115.96:39-0.27:210.46:398:09First Quarter11Fri
12Sat1:155.42:116.07:33-0.18:260.56:408:08First Quarter12Sat
13Sun2:145.13:126.08:300.09:310.66:418:07First Quarter13Sun
14Mon3:144.94:156.09:300.110:350.76:428:06Waxing Gibbous14Mon
15Tue4:184.85:186.110:310.211:350.66:428:05Waxing Gibbous15Tue
16Wed5:214.86:166.211:310.26:438:04Waxing Gibbous16Wed
17Thu6:214.97:086.212:310.512:280.26:448:03Waxing Gibbous17Thu
18Fri7:145.07:556.21:220.41:210.26:448:02Full Moon18Fri
19Sat8:025.18:386.12:100.42:100.26:458:01Full Moon19Sat
20Sun8:485.29:196.02:530.42:570.36:468:00Full Moon20Sun
21Mon9:315.39:575.83:330.43:400.56:467:59Full Moon21Mon
22Tue10:135.310:345.64:110.44:210.76:477:57Waning Gibbous22Tue
23Wed10:525.311:115.44:450.55:000.96:487:56Waning Gibbous23Wed
24Thu11:315.311:485.15:180.75:401.16:487:55Waning Gibbous24Thu
25Fri12:115.35:520.86:231.46:497:54Waning Gibbous25Fri
26Sat12:274.912:525.36:280.97:111.66:507:53Third Quarter26Sat
27Sun1:104.71:385.37:101.08:051.76:507:51Third Quarter27Sun
28Mon1:584.52:295.37:591.19:031.76:517:50Third Quarter28Mon
29Tue2:514.53:245.48:531.010:011.66:527:49Third Quarter29Tue
30Wed3:484.54:235.69:510.910:591.46:527:48Waning Crescent30Wed
31Thu4:484.65:235.810:500.711:531.26:537:46Waning Crescent31Thu
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 7:20 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 spring phase. Tonight's moon is 96% 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 Waning Gibbous (96% 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