Tides Today & Tomorrow in Charleston, SC

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Charleston, SC.
Next low tide : in 4h 21m at 9:54 pm (1.0 ft)
Next high tide (tomorrow) : 3:32 am (4.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8665530
Common Questions About Tides

Charleston, SC Tides - Aug 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:014.66:445.712:170.712:070.56:338:18Waxing Gibbous1Sun
2Mon6:484.77:275.81:020.612:510.46:348:17Waxing Gibbous2Mon
3Tue7:334.88:085.81:450.51:340.46:348:16Full Moon3Tue
4Wed8:154.88:475.82:260.52:150.36:358:16Full Moon4Wed
5Thu8:554.99:245.83:040.42:560.36:368:15Full Moon5Thu
6Fri9:344.99:595.73:410.33:360.36:368:14Full Moon6Fri
7Sat10:115.010:335.64:170.34:170.46:378:13Waning Gibbous7Sat
8Sun10:485.111:085.54:530.35:000.56:388:12Waning Gibbous8Sun
9Mon11:295.211:485.45:320.25:470.66:388:11Waning Gibbous9Mon
10Tue12:165.46:150.26:400.76:398:10Waning Gibbous10Tue
11Wed12:355.31:105.57:030.17:400.86:408:09Third Quarter11Wed
12Thu1:295.12:105.77:570.18:460.86:408:08Third Quarter12Thu
13Fri2:305.03:135.98:560.09:520.76:418:07Third Quarter13Fri
14Sat3:365.04:216.19:57-0.110:580.66:428:06Waning Crescent14Sat
15Sun4:465.05:286.311:00-0.26:428:05Waning Crescent15Sun
16Mon5:545.26:316.612:010.312:03-0.46:438:04Waning Crescent16Mon
17Tue6:575.47:296.71:000.11:02-0.56:448:03New Moon17Tue
18Wed7:555.68:236.81:55-0.12:00-0.66:458:02New Moon18Wed
19Thu8:515.89:156.72:47-0.32:54-0.66:458:00New Moon19Thu
20Fri9:465.910:056.53:36-0.33:47-0.46:467:59New Moon20Fri
21Sat10:385.910:526.24:23-0.24:38-0.26:477:58Waxing Crescent21Sat
22Sun11:295.911:385.95:08-0.15:290.26:477:57Waxing Crescent22Sun
23Mon12:195.85:520.26:200.56:487:56Waxing Crescent23Mon
24Tue12:245.51:095.76:370.47:140.96:497:55First Quarter24Tue
25Wed1:115.21:595.67:230.78:091.16:497:53First Quarter25Wed
26Thu1:595.02:495.58:120.99:051.36:507:52First Quarter26Thu
27Fri2:494.83:395.59:011.09:591.36:507:51First Quarter27Fri
28Sat3:414.74:315.59:521.010:521.36:517:50Waxing Gibbous28Sat
29Sun4:354.85:235.610:431.011:411.26:527:48Waxing Gibbous29Sun
30Mon5:294.96:125.811:330.96:527:47Waxing Gibbous30Mon
31Tue6:195.06:575.912:281.012:210.86:537:46Waxing Gibbous31Tue
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 12:43 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 62% 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 (62% 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