Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 1:36 am (-0.1 ft)
Next high tide : in 2h 56m at 7:06 pm (6.3 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Jun 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:574.99:326.03:04-0.43:02-0.36:128:23Full Moon1Wed
2Thu9:434.810:155.83:50-0.33:45-0.16:118:23Full Moon2Thu
3Fri10:294.710:575.54:33-0.14:270.16:118:24Waning Gibbous3Fri
4Sat11:144.511:385.35:150.15:080.46:118:24Waning Gibbous4Sat
5Sun11:594.45:560.35:500.66:118:25Waning Gibbous5Sun
6Mon12:215.112:474.46:390.46:360.96:118:25Waning Gibbous6Mon
7Tue1:054.91:364.47:230.57:271.06:118:26Third Quarter7Tue
8Wed1:524.72:254.48:080.68:231.16:118:26Third Quarter8Wed
9Thu2:404.63:154.68:540.59:201.06:118:27Third Quarter9Thu
10Fri3:304.54:054.89:410.410:160.96:118:27Third Quarter10Fri
11Sat4:214.54:565.010:280.311:120.86:118:27Waning Crescent11Sat
12Sun5:144.55:465.311:170.16:118:28Waning Crescent12Sun
13Mon6:054.66:335.612:050.512:05-0.16:118:28Waning Crescent13Mon
14Tue6:544.67:195.812:560.312:54-0.36:118:29Waning Crescent14Tue
15Wed7:424.78:046.01:460.01:43-0.56:118:29New Moon15Wed
16Thu8:314.88:526.22:35-0.22:32-0.66:118:29New Moon16Thu
17Fri9:224.99:416.23:24-0.43:23-0.76:118:30New Moon17Fri
18Sat10:164.910:336.14:12-0.54:15-0.66:118:30Waxing Crescent18Sat
19Sun11:135.011:276.05:02-0.55:08-0.56:118:30Waxing Crescent19Sun
20Mon12:125.05:53-0.56:05-0.36:128:30Waxing Crescent20Mon
21Tue12:245.81:135.16:47-0.47:06-0.26:128:30First Quarter21Tue
22Wed1:225.62:145.27:44-0.48:100.06:128:31First Quarter22Wed
23Thu2:205.43:145.48:41-0.49:150.16:128:31First Quarter23Thu
24Fri3:185.24:135.59:37-0.410:170.16:138:31First Quarter24Fri
25Sat4:165.05:115.710:32-0.411:180.06:138:31Waxing Gibbous25Sat
26Sun5:144.96:065.811:26-0.46:138:31Waxing Gibbous26Sun
27Mon6:094.86:565.912:140.012:18-0.46:148:31Waxing Gibbous27Mon
28Tue7:004.87:425.91:07-0.11:07-0.36:148:31Full Moon28Tue
29Wed7:474.78:265.91:56-0.11:53-0.26:148:31Full Moon29Wed
30Thu8:334.79:085.82:42-0.12:38-0.16:158:31Full Moon30Thu
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 10:21 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 spring phase. Tonight's moon is 5% 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 Crescent (5% 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