Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Thursday, June 4, 2026
The tide is currently falling in Fort Sumter, SC.
Next low tide : in 3h 14m at 5:03 pm (0.6 ft)
Next high tide : 11:31 pm (5.1 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Apr 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:175.312:514.27:030.67:050.37:067:39First Quarter1Sat
2Sun1:175.31:584.38:050.78:120.37:057:40First Quarter2Sun
3Mon2:265.23:104.59:100.69:220.27:037:41First Quarter3Mon
4Tue3:385.34:234.810:130.310:310.07:027:42Waxing Gibbous4Tue
5Wed4:485.45:305.211:130.011:37-0.27:017:42Waxing Gibbous5Wed
6Thu5:515.56:305.712:09-0.36:597:43Waxing Gibbous6Thu
7Fri6:485.67:246.112:38-0.51:01-0.66:587:44Waxing Gibbous7Fri
8Sat7:405.78:156.41:35-0.71:50-0.86:577:44Full Moon8Sat
9Sun8:305.69:056.52:29-0.82:38-0.86:567:45Full Moon9Sun
10Mon9:195.49:546.43:21-0.83:25-0.76:547:46Full Moon10Mon
11Tue10:085.210:436.24:11-0.64:11-0.56:537:47Waning Gibbous11Tue
12Wed10:574.911:325.95:00-0.34:57-0.26:527:47Waning Gibbous12Wed
13Thu11:464.75:490.05:440.26:517:48Waning Gibbous13Thu
14Fri12:235.512:394.56:410.46:350.66:507:49Waning Gibbous14Fri
15Sat1:165.21:344.37:350.77:320.96:487:49Third Quarter15Sat
16Sun2:114.92:314.38:310.88:341.06:477:50Third Quarter16Sun
17Mon3:064.73:274.39:250.99:351.16:467:51Third Quarter17Mon
18Tue4:004.74:234.510:160.810:331.06:457:52Third Quarter18Tue
19Wed4:534.75:164.711:030.711:270.96:447:52Waning Crescent19Wed
20Thu5:424.76:055.011:460.66:437:53Waning Crescent20Thu
21Fri6:284.86:485.212:160.712:270.46:417:54Waning Crescent21Fri
22Sat7:104.87:285.51:020.51:050.36:407:54Waning Crescent22Sat
23Sun7:494.88:055.61:440.41:420.26:397:55New Moon23Sun
24Mon8:274.78:405.72:250.32:190.16:387:56New Moon24Mon
25Tue9:044.79:145.83:060.22:570.06:377:57New Moon25Tue
26Wed9:404.69:505.83:460.23:370.06:367:57New Moon26Wed
27Thu10:184.510:305.84:260.34:190.06:357:58Waxing Crescent27Thu
28Fri11:014.511:165.75:100.35:040.16:347:59Waxing Crescent28Fri
29Sat11:514.45:570.45:560.26:338:00Waxing Crescent29Sat
30Sun12:095.612:514.56:500.46:550.36:328:00First Quarter30Sun
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 8:17 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 spring phase. Tonight's moon is 84% 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 Waning Gibbous (84% 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