Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 3:42 am (0.4 ft)
Next high tide : in 59m at 9:22 pm (5.4 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:14 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Aug 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:424.810:055.53:430.33:420.36:348:17Full Moon1Fri
2Sat10:184.810:375.34:190.24:210.46:348:16Waning Gibbous2Sat
3Sun10:544.911:115.24:540.25:020.56:358:16Waning Gibbous3Sun
4Mon11:335.011:495.15:320.25:480.66:368:15Waning Gibbous4Mon
5Tue12:185.16:140.26:390.76:368:14Third Quarter5Tue
6Wed12:355.01:115.37:030.17:390.86:378:13Third Quarter6Wed
7Thu1:305.02:105.57:570.18:430.76:388:12Third Quarter7Thu
8Fri2:314.93:135.78:560.09:490.66:388:11Third Quarter8Fri
9Sat3:364.94:205.99:57-0.210:540.46:398:10Waning Crescent9Sat
10Sun4:465.05:276.111:00-0.311:560.26:408:09Waning Crescent10Sun
11Mon5:545.26:306.412:02-0.56:408:08Waning Crescent11Mon
12Tue6:575.47:286.512:55-0.11:02-0.76:418:07New Moon12Tue
13Wed7:565.68:226.61:50-0.31:59-0.76:428:06New Moon13Wed
14Thu8:535.89:156.52:43-0.52:54-0.76:428:05New Moon14Thu
15Fri9:485.910:066.43:33-0.53:48-0.66:438:04New Moon15Fri
16Sat10:425.910:566.14:21-0.54:40-0.46:448:03Waxing Crescent16Sat
17Sun11:355.811:445.85:08-0.35:320.06:448:02Waxing Crescent17Sun
18Mon12:275.75:55-0.16:250.36:458:00Waxing Crescent18Mon
19Tue12:335.41:195.66:430.27:200.66:467:59First Quarter19Tue
20Wed1:225.12:115.57:320.58:170.96:467:58First Quarter20Wed
21Thu2:124.93:025.48:230.79:121.06:477:57First Quarter21Thu
22Fri3:024.83:535.49:150.810:061.16:487:56First Quarter22Fri
23Sat3:544.74:445.410:060.810:581.06:487:55Waxing Gibbous23Sat
24Sun4:484.75:355.510:560.811:471.06:497:53Waxing Gibbous24Sun
25Mon5:404.86:225.611:450.76:507:52Waxing Gibbous25Mon
26Tue6:295.07:055.712:330.812:320.66:507:51Waxing Gibbous26Tue
27Wed7:145.17:465.81:150.71:160.56:517:50Full Moon27Wed
28Thu7:565.28:255.81:550.61:580.56:527:49Full Moon28Thu
29Fri8:355.39:015.82:330.52:390.46:527:47Full Moon29Fri
30Sat9:125.49:365.73:100.43:200.46:537:46Full Moon30Sat
31Sun9:495.510:105.63:470.34:020.56:547:45Waning Gibbous31Sun
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 12:32 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 Fort Sumter, SC?

Fort Sumter, SC is currently in a spring phase. Tonight's moon is 100% 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 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 Full Moon (100% illuminated). This places Fort Sumter, 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