Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 5:29 am (0.3 ft)
Next high tide : in 1h 51m at 11:06 pm (5.2 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Sep 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:145.67:556.71:170.11:24-0.36:547:44Full Moon1Sun
2Mon8:125.98:486.72:10-0.22:21-0.46:557:42Full Moon2Mon
3Tue9:076.19:406.63:00-0.33:16-0.46:557:41Full Moon3Tue
4Wed10:026.210:296.33:48-0.44:10-0.26:567:40Waning Gibbous4Wed
5Thu10:546.211:186.04:35-0.35:020.16:577:39Waning Gibbous5Thu
6Fri11:466.15:21-0.15:550.46:577:37Waning Gibbous6Fri
7Sat12:075.612:386.06:070.26:500.86:587:36Waning Gibbous7Sat
8Sun12:585.31:305.86:560.57:481.16:597:35Third Quarter8Sun
9Mon1:495.02:235.77:480.78:471.36:597:33Third Quarter9Mon
10Tue2:424.83:165.58:410.99:441.47:007:32Third Quarter10Tue
11Wed3:364.74:095.59:361.010:381.47:007:31Third Quarter11Wed
12Thu4:304.75:025.510:291.011:291.37:017:29Waning Crescent12Thu
13Fri5:244.85:525.611:211.07:027:28Waning Crescent13Fri
14Sat6:155.06:375.712:151.212:100.97:027:26Waning Crescent14Sat
15Sun7:005.27:195.812:571.112:560.87:037:25Waning Crescent15Sun
16Mon7:435.37:575.91:360.91:390.77:047:24New Moon16Mon
17Tue8:225.48:335.92:120.82:210.67:047:22New Moon17Tue
18Wed8:595.59:085.82:460.73:020.67:057:21New Moon18Wed
19Thu9:345.69:415.73:190.73:420.77:067:20New Moon19Thu
20Fri10:085.710:145.53:530.64:240.77:067:18Waxing Crescent20Fri
21Sat10:435.710:525.44:290.65:070.97:077:17Waxing Crescent21Sat
22Sun11:235.811:355.25:080.65:551.07:087:16Waxing Crescent22Sun
23Mon12:125.85:520.76:491.17:087:14First Quarter23Mon
24Tue12:275.11:125.86:450.77:511.27:097:13First Quarter24Tue
25Wed1:285.02:205.97:460.88:571.27:097:12First Quarter25Wed
26Thu2:375.03:326.08:540.710:021.07:107:10First Quarter26Thu
27Fri3:485.14:426.110:030.611:040.87:117:09Waxing Gibbous27Fri
28Sat4:595.35:476.311:110.47:117:08Waxing Gibbous28Sat
29Sun6:055.76:446.512:020.412:140.27:127:06Waxing Gibbous29Sun
30Mon7:036.07:366.612:550.21:130.07:137:05Full Moon30Mon
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 2:17 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 88% 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 (88% 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