Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Monday, July 6, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 7:13 pm (0.7 ft)
Next high tide : in 2h 14m at 12:58 pm (4.8 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:17 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Mar 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:354.98:424.92:18-0.12:36-0.16:466:16New Moon1Thu
2Fri9:054.89:125.02:540.03:07-0.16:456:17Waxing Crescent2Fri
3Sat9:344.69:435.03:310.13:39-0.16:446:18Waxing Crescent3Sat
4Sun10:044.410:195.14:100.24:150.06:436:19Waxing Crescent4Sun
5Mon10:414.311:025.14:530.44:560.06:416:19Waxing Crescent5Mon
6Tue11:284.111:575.05:440.55:460.16:406:20First Quarter6Tue
7Wed12:274.06:450.76:470.26:396:21First Quarter7Wed
8Thu1:035.01:384.07:530.77:550.16:386:22First Quarter8Thu
9Fri2:175.02:554.19:030.69:070.06:366:22First Quarter9Fri
10Sat3:355.24:114.410:090.310:16-0.36:356:23Waxing Gibbous10Sat
11Sun5:465.56:174.912:08-0.17:347:24Waxing Gibbous11Sun
12Mon6:465.77:155.312:20-0.61:03-0.47:337:25Waxing Gibbous12Mon
13Tue7:395.98:085.71:19-0.91:53-0.77:317:25Full Moon13Tue
14Wed8:285.98:586.02:14-1.12:40-0.97:307:26Full Moon14Wed
15Thu9:165.89:476.13:07-1.13:25-0.97:297:27Full Moon15Thu
16Fri10:035.510:366.03:57-1.04:09-0.87:277:28Waning Gibbous16Fri
17Sat10:485.211:235.84:47-0.74:52-0.67:267:28Waning Gibbous17Sat
18Sun11:344.85:36-0.35:36-0.27:257:29Waning Gibbous18Sun
19Mon12:115.512:224.56:270.16:220.27:237:30Waning Gibbous19Mon
20Tue1:035.21:144.27:220.57:140.57:227:31Third Quarter20Tue
21Wed1:584.92:104.08:200.88:130.87:217:31Third Quarter21Wed
22Thu2:564.73:084.09:190.99:150.97:207:32Third Quarter22Thu
23Fri3:554.64:084.010:150.910:170.97:187:33Third Quarter23Fri
24Sat4:544.65:074.211:080.811:140.87:177:33Waning Crescent24Sat
25Sun5:474.76:004.411:560.77:167:34Waning Crescent25Sun
26Mon6:334.86:464.712:060.612:380.57:147:35Waning Crescent26Mon
27Tue7:155.07:275.012:530.41:160.37:137:36Waning Crescent27Tue
28Wed7:535.08:055.21:360.31:520.27:127:36New Moon28Wed
29Thu8:295.08:405.32:160.22:260.17:107:37New Moon29Thu
30Fri9:034.99:135.52:560.13:000.07:097:38New Moon30Fri
31Sat9:364.89:455.53:350.13:350.07:087:38New Moon31Sat
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 4:05 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 62% 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 Third Quarter (62% 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