Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Fort Sumter, SC.
Next low tide : in 5h 21m at 7:13 pm (0.7 ft)
Next high tide (tomorrow) : 1:10 am (4.8 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:17 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Jun 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:244.76:120.06:160.06:128:22Waxing Crescent1Fri
2Sat12:405.71:274.87:070.07:190.16:128:23First Quarter2Sat
3Sun1:395.52:295.08:04-0.18:260.26:118:23First Quarter3Sun
4Mon2:375.33:295.29:00-0.19:310.26:118:24First Quarter4Mon
5Tue3:345.14:295.59:54-0.210:350.26:118:24Waxing Gibbous5Tue
6Wed4:324.95:265.710:47-0.311:350.16:118:25Waxing Gibbous6Wed
7Thu5:284.86:195.911:39-0.36:118:25Waxing Gibbous7Thu
8Fri6:224.77:086.012:320.112:28-0.36:118:26Waxing Gibbous8Fri
9Sat7:124.67:556.01:240.01:16-0.26:118:26Full Moon9Sat
10Sun7:594.58:395.92:140.02:03-0.16:118:27Full Moon10Sun
11Mon8:454.59:225.83:000.02:480.06:118:27Full Moon11Mon
12Tue9:314.410:055.63:440.13:310.26:118:28Full Moon12Tue
13Wed10:164.310:465.34:260.24:120.36:118:28Waning Gibbous13Wed
14Thu11:004.311:265.15:060.44:520.56:118:28Waning Gibbous14Thu
15Fri11:454.25:440.55:330.76:118:29Waning Gibbous15Fri
16Sat12:064.912:314.26:240.66:180.96:118:29Waning Gibbous16Sat
17Sun12:484.71:184.37:040.67:081.16:118:29Third Quarter17Sun
18Mon1:314.62:064.47:460.68:041.26:118:30Third Quarter18Mon
19Tue2:164.42:544.68:300.69:031.26:118:30Third Quarter19Tue
20Wed3:044.33:434.89:150.510:021.16:118:30Third Quarter20Wed
21Thu3:554.24:355.010:030.311:000.96:128:30Waning Crescent21Thu
22Fri4:494.25:275.310:530.211:570.76:128:31Waning Crescent22Fri
23Sat5:454.26:195.611:460.06:128:31Waning Crescent23Sat
24Sun6:404.37:105.912:510.512:39-0.26:128:31Waning Crescent24Sun
25Mon7:324.48:006.11:430.21:32-0.46:138:31New Moon25Mon
26Tue8:254.58:526.22:340.02:25-0.56:138:31New Moon26Tue
27Wed9:204.79:466.23:24-0.23:19-0.66:138:31New Moon27Wed
28Thu10:184.810:396.14:14-0.34:13-0.66:148:31Waxing Crescent28Thu
29Fri11:164.911:336.05:03-0.45:08-0.56:148:31Waxing Crescent29Fri
30Sat12:145.15:53-0.46:06-0.36:158:31Waxing Crescent30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665728)

Common Questions About Fort Sumter, SC Tides

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What time does the tide turn (slack tide) in Fort Sumter, SC today?

Slack tide in Fort Sumter, SC is approximately 10:11 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 Fort Sumter, SC?

Fort Sumter, 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 Fort Sumter, 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 Fort Sumter, SC?

Tide predictions for Fort Sumter, 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 Fort Sumter, SC?

Tide data for Fort Sumter, SC is sourced from NOAA Station #8665728. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8665728.

What is the moon phase in Fort Sumter, SC tonight?

Tonight the moon over Fort Sumter, SC is Third Quarter (62% illuminated). This places Fort Sumter, 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