Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 8:32 am (-0.1 ft)
Next high tide (tomorrow) : in 4h 31m at 2:04 am (4.7 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:18 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Oct 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:206.79:336.02:59-0.13:410.17:147:03New Moon1Thu
2Fri10:126.710:255.83:46-0.14:330.27:147:02Waxing Crescent2Fri
3Sat11:086.611:205.54:350.05:270.47:157:01Waxing Crescent3Sat
4Sun12:086.55:280.26:250.67:166:59Waxing Crescent4Sun
5Mon12:215.31:136.36:250.47:280.87:166:58First Quarter5Mon
6Tue1:265.22:196.17:290.68:320.97:176:57First Quarter6Tue
7Wed2:335.13:236.08:370.89:340.97:186:55First Quarter7Wed
8Thu3:395.24:246.09:440.810:320.97:196:54Waxing Gibbous8Thu
9Fri4:415.45:205.910:470.811:250.77:196:53Waxing Gibbous9Fri
10Sat5:395.66:105.911:450.77:206:52Waxing Gibbous10Sat
11Sun6:295.86:555.912:130.612:380.67:216:50Waxing Gibbous11Sun
12Mon7:146.07:355.812:570.51:260.67:216:49Full Moon12Mon
13Tue7:556.18:145.71:380.42:110.67:226:48Full Moon13Tue
14Wed8:336.18:525.52:170.52:530.77:236:47Full Moon14Wed
15Thu9:106.19:305.42:530.53:330.87:246:46Full Moon15Thu
16Fri9:466.010:075.23:290.64:111.07:246:44Waning Gibbous16Fri
17Sat10:225.910:455.04:030.84:481.27:256:43Waning Gibbous17Sat
18Sun10:595.711:244.84:380.95:251.37:266:42Waning Gibbous18Sun
19Mon11:385.65:161.16:051.57:276:41Waning Gibbous19Mon
20Tue12:064.712:215.55:571.26:501.67:276:40Third Quarter20Tue
21Wed12:524.61:125.46:461.37:421.67:286:39Third Quarter21Wed
22Thu1:454.62:065.47:431.38:361.57:296:38Third Quarter22Thu
23Fri2:424.73:025.48:451.29:301.37:306:37Third Quarter23Fri
24Sat3:405.03:585.59:471.110:221.07:316:36Waning Crescent24Sat
25Sun4:385.34:545.610:480.811:140.77:316:34Waning Crescent25Sun
26Mon5:355.75:495.811:470.67:326:33Waning Crescent26Mon
27Tue6:286.26:415.912:050.312:440.37:336:32Waning Crescent27Tue
28Wed7:196.57:315.912:550.01:390.17:346:31New Moon28Wed
29Thu8:096.88:225.91:44-0.22:33-0.17:356:31New Moon29Thu
30Fri9:026.99:155.72:35-0.33:26-0.17:366:30New Moon30Fri
31Sat9:576.910:115.63:26-0.34:190.07:366:29Waxing Crescent31Sat
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 5:18 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 neap phase. Tonight's moon is 52% 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 minimum.

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 Third Quarter (52% illuminated). This places Fort Sumter, SC in a neap tide cycle, so tidal ranges are near their weekly minimum 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