Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Fort Sumter, SC.
Next low tide : in 5h 26m at 6:16 pm (0.6 ft)
Next high tide (tomorrow) : 12:22 am (4.9 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:17 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Aug 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:324.69:055.72:420.52:300.26:348:17Full Moon1Mon
2Tue9:134.79:415.73:200.33:140.26:348:16Full Moon2Tue
3Wed9:534.810:185.63:580.23:580.26:358:16Waning Gibbous3Wed
4Thu10:345.010:555.54:360.14:430.36:368:15Waning Gibbous4Thu
5Fri11:195.211:365.35:150.05:310.46:368:14Waning Gibbous5Fri
6Sat12:075.35:580.06:250.66:378:13Waning Gibbous6Sat
7Sun12:245.11:025.56:450.07:260.76:388:12Third Quarter7Sun
8Mon1:184.92:015.67:390.08:320.86:388:11Third Quarter8Mon
9Tue2:184.73:055.78:370.09:400.86:398:10Third Quarter9Tue
10Wed3:244.64:135.89:390.010:470.76:408:09Waning Crescent10Wed
11Thu4:344.65:216.010:430.011:510.66:408:08Waning Crescent11Thu
12Fri5:444.76:256.111:46-0.16:418:07Waning Crescent12Fri
13Sat6:474.97:226.312:500.412:47-0.26:428:06Waning Crescent13Sat
14Sun7:445.18:156.31:440.21:43-0.36:428:05New Moon14Sun
15Mon8:385.39:036.22:340.02:37-0.36:438:04New Moon15Mon
16Tue9:305.49:496.03:210.03:28-0.26:448:03New Moon16Tue
17Wed10:205.510:325.84:050.04:170.06:448:02Waxing Crescent17Wed
18Thu11:075.511:135.54:460.15:040.36:458:00Waxing Crescent18Thu
19Fri11:525.411:545.25:250.35:510.76:467:59Waxing Crescent19Fri
20Sat12:385.36:040.56:401.06:467:58Waxing Crescent20Sat
21Sun12:374.91:245.26:430.77:321.26:477:57First Quarter21Sun
22Mon1:224.72:125.27:260.98:271.46:487:56First Quarter22Mon
23Tue2:114.53:025.28:131.09:211.46:487:55First Quarter23Tue
24Wed3:024.43:555.29:041.110:161.46:497:53First Quarter24Wed
25Thu3:574.44:505.39:571.111:081.36:507:52Waxing Gibbous25Thu
26Fri4:534.45:435.410:521.011:581.26:507:51Waxing Gibbous26Fri
27Sat5:474.66:315.611:450.86:517:50Waxing Gibbous27Sat
28Sun6:374.87:155.812:441.012:350.66:527:48Waxing Gibbous28Sun
29Mon7:215.07:555.91:260.81:220.56:527:47Full Moon29Mon
30Tue8:045.28:346.02:070.62:090.36:537:46Full Moon30Tue
31Wed8:455.49:126.02:460.42:550.36:547:45Full Moon31Wed
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 9:19 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 72% 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 Waning Gibbous (72% 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