Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 2:05 pm (0.3 ft)
Next high tide : in 5h 40m at 8:09 am (4.3 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 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:484.94:315.89:55-0.310:520.46:338:18Waning Crescent1Tue
2Wed4:514.95:325.910:55-0.311:510.36:348:17Waning Crescent2Wed
3Thu5:524.96:286.011:53-0.36:358:16Waning Crescent3Thu
4Fri6:485.07:196.012:460.212:47-0.36:358:15Waning Crescent4Fri
5Sat7:405.18:056.01:370.11:39-0.36:368:14New Moon5Sat
6Sun8:285.28:485.92:240.02:27-0.26:378:13New Moon6Sun
7Mon9:155.29:295.83:080.03:13-0.16:378:12New Moon7Mon
8Tue9:595.210:085.63:480.13:570.16:388:11Waxing Crescent8Tue
9Wed10:425.210:465.44:260.24:390.46:398:11Waxing Crescent9Wed
10Thu11:245.111:255.25:020.35:200.66:398:10Waxing Crescent10Thu
11Fri12:065.05:360.56:030.86:408:09Waxing Crescent11Fri
12Sat12:045.012:495.06:120.66:481.16:418:07First Quarter12Sat
13Sun12:464.81:345.06:520.77:391.26:418:06First Quarter13Sun
14Mon1:324.62:225.07:360.88:321.36:428:05First Quarter14Mon
15Tue2:214.53:135.18:260.89:281.36:438:04First Quarter15Tue
16Wed3:134.54:065.29:190.710:231.16:438:03First Quarter16Wed
17Thu4:084.65:015.410:150.611:170.96:448:02Waxing Gibbous17Thu
18Fri5:064.75:545.611:120.46:458:01Waxing Gibbous18Fri
19Sat6:014.96:445.912:090.712:080.26:458:00Waxing Gibbous19Sat
20Sun6:545.27:316.112:580.41:020.06:467:59Full Moon20Sun
21Mon7:445.58:176.31:460.01:55-0.26:477:58Full Moon21Mon
22Tue8:345.89:056.32:33-0.22:47-0.36:477:56Full Moon22Tue
23Wed9:256.09:546.23:20-0.43:39-0.36:487:55Full Moon23Wed
24Thu10:186.110:446.14:08-0.54:32-0.26:497:54Waning Gibbous24Thu
25Fri11:136.111:385.94:56-0.55:26-0.16:497:53Waning Gibbous25Fri
26Sat12:106.15:46-0.46:240.26:507:52Waning Gibbous26Sat
27Sun12:345.61:116.16:40-0.27:260.46:517:50Third Quarter27Sun
28Mon1:345.42:136.07:38-0.18:310.66:517:49Third Quarter28Mon
29Tue2:365.23:156.08:390.19:350.76:527:48Third Quarter29Tue
30Wed3:385.14:175.99:400.210:360.76:537:47Waning Crescent30Wed
31Thu4:405.15:165.910:400.211:330.66:537:45Waning Crescent31Thu
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 11:07 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