Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Fort Sumter, SC.
Next low tide (tomorrow) : in 3h 59m at 1:43 am (0.4 ft)
Next high tide (tomorrow) : 7:26 am (4.3 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Nov 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:255.21:086.06:340.57:310.67:376:28First Quarter1Mon
2Tue1:315.22:135.97:400.68:320.67:386:27First Quarter2Tue
3Wed2:395.43:165.88:480.69:310.47:396:26First Quarter3Wed
4Thu3:445.64:175.89:550.510:280.27:406:25Waxing Gibbous4Thu
5Fri4:485.85:175.811:000.411:230.07:416:24Waxing Gibbous5Fri
6Sat5:476.16:125.812:000.37:426:24Waxing Gibbous6Sat
7Sun5:406.36:025.712:15-0.111:55 AM0.16:425:23Waxing Gibbous7Sun
8Mon6:296.56:505.712:04-0.212:470.16:435:22Full Moon8Mon
9Tue7:166.57:355.512:51-0.21:360.16:445:21Full Moon9Tue
10Wed8:006.48:205.41:37-0.12:230.26:455:21Full Moon10Wed
11Thu8:436.29:045.22:200.03:070.46:465:20Waning Gibbous11Thu
12Fri9:256.09:495.03:030.23:490.66:475:19Waning Gibbous12Fri
13Sat10:065.710:334.93:440.54:300.86:485:19Waning Gibbous13Sat
14Sun10:495.511:204.74:260.75:121.06:495:18Waning Gibbous14Sun
15Mon11:335.35:100.95:561.26:505:18Third Quarter15Mon
16Tue12:104.612:215.15:591.16:431.26:515:17Third Quarter16Tue
17Wed1:014.61:105.06:531.27:311.26:515:17Third Quarter17Wed
18Thu1:544.72:004.97:501.28:181.16:525:16Third Quarter18Thu
19Fri2:464.82:514.98:471.29:051.06:535:16Waning Crescent19Fri
20Sat3:385.03:434.99:431.09:530.86:545:15Waning Crescent20Sat
21Sun4:295.34:344.910:370.810:400.56:555:15Waning Crescent21Sun
22Mon5:175.65:235.011:280.611:280.36:565:15Waning Crescent22Mon
23Tue6:025.86:095.112:180.46:575:14New Moon23Tue
24Wed6:466.16:545.212:150.01:060.16:585:14New Moon24Wed
25Thu7:316.27:415.21:02-0.21:540.06:595:14New Moon25Thu
26Fri8:196.38:315.21:51-0.32:43-0.16:595:13New Moon26Fri
27Sat9:096.39:245.22:41-0.43:32-0.27:005:13Waxing Crescent27Sat
28Sun10:026.110:205.23:32-0.34:22-0.17:015:13Waxing Crescent28Sun
29Mon10:586.011:205.24:26-0.25:15-0.17:025:13Waxing Crescent29Mon
30Tue11:565.85:250.06:110.07:035:13First Quarter30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665728)

Common Questions About Fort Sumter, SC Tides

Show All
What time does the tide turn (slack tide) in Fort Sumter, SC today?

Slack tide in Fort Sumter, SC is approximately 4:34 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 95% 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 Waxing Gibbous (95% 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