Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 6:16 pm (0.6 ft)
Next high tide : in 2h 45m at 12:09 pm (4.6 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 - May 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:385.07:125.612:320.312:460.26:318:01Waxing Gibbous1Sun
2Mon7:184.97:515.71:190.21:250.16:308:02Full Moon2Mon
3Tue7:564.88:285.72:030.22:010.16:298:03Full Moon3Tue
4Wed8:344.89:045.72:440.22:350.26:288:03Full Moon4Wed
5Thu9:124.69:385.63:230.23:090.36:278:04Full Moon5Thu
6Fri9:494.510:125.54:010.33:420.46:268:05Waning Gibbous6Fri
7Sat10:264.310:465.34:380.44:150.56:268:06Waning Gibbous7Sat
8Sun11:024.211:215.25:150.64:510.66:258:06Waning Gibbous8Sun
9Mon11:414.15:540.75:320.76:248:07Waning Gibbous9Mon
10Tue12:005.112:254.16:370.86:190.86:238:08Waning Gibbous10Tue
11Wed12:475.01:174.27:260.97:160.96:228:08Third Quarter11Wed
12Thu1:424.92:154.38:190.88:210.96:228:09Third Quarter12Thu
13Fri2:404.93:144.69:130.69:280.76:218:10Third Quarter13Fri
14Sat3:394.94:155.010:060.310:340.56:208:11Waning Crescent14Sat
15Sun4:405.05:165.411:000.011:380.36:208:11Waning Crescent15Sun
16Mon5:395.16:135.911:53-0.36:198:12Waning Crescent16Mon
17Tue6:365.17:066.312:380.012:45-0.66:188:13Waning Crescent17Tue
18Wed7:305.17:596.51:36-0.31:36-0.76:188:13New Moon18Wed
19Thu8:255.18:536.62:31-0.42:28-0.86:178:14New Moon19Thu
20Fri9:225.09:496.53:26-0.53:21-0.76:168:15New Moon20Fri
21Sat10:204.910:466.34:20-0.44:15-0.66:168:16Waxing Crescent21Sat
22Sun11:204.811:456.15:14-0.35:10-0.36:158:16Waxing Crescent22Sun
23Mon12:224.76:09-0.16:070.06:158:17Waxing Crescent23Mon
24Tue12:445.71:244.77:060.17:100.36:148:18First Quarter24Tue
25Wed1:435.42:254.78:050.28:140.56:148:18First Quarter25Wed
26Thu2:395.23:224.89:000.39:180.66:148:19First Quarter26Thu
27Fri3:314.94:175.09:520.310:170.66:138:19First Quarter27Fri
28Sat4:224.85:095.110:400.311:130.66:138:20Waxing Gibbous28Sat
29Sun5:114.65:575.311:240.26:138:21Waxing Gibbous29Sun
30Mon5:574.66:405.512:040.512:060.26:128:21Waxing Gibbous30Mon
31Tue6:414.57:205.612:520.412:460.26:128:22Waxing Gibbous31Tue
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 3:12 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