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 4h 37m 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 - Jan 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:545.18:594.32:220.03:080.27:215:24New Moon1Mon
2Tue9:305.09:374.22:590.13:430.37:215:25Waxing Crescent2Tue
3Wed10:044.810:134.23:350.24:160.37:225:25Waxing Crescent3Wed
4Thu10:384.710:514.24:130.34:500.47:225:26Waxing Crescent4Thu
5Fri11:124.511:314.24:530.55:270.47:225:27Waxing Crescent5Fri
6Sat11:524.35:400.66:090.37:225:28First Quarter6Sat
7Sun12:184.312:384.16:360.76:570.37:225:29First Quarter7Sun
8Mon1:104.51:314.07:390.87:500.27:225:30First Quarter8Mon
9Tue2:084.62:313.98:440.78:470.07:225:30First Quarter9Tue
10Wed3:124.93:384.09:510.59:48-0.27:225:31Waxing Gibbous10Wed
11Thu4:195.24:454.110:540.210:49-0.57:225:32Waxing Gibbous11Thu
12Fri5:225.55:464.311:52-0.111:49-0.87:225:33Waxing Gibbous12Fri
13Sat6:205.86:434.612:47-0.47:225:34Full Moon13Sat
14Sun7:156.07:384.812:46-1.11:39-0.77:215:35Full Moon14Sun
15Mon8:086.18:345.01:41-1.32:29-0.97:215:36Full Moon15Mon
16Tue9:016.19:295.12:35-1.33:18-1.07:215:37Waning Gibbous16Tue
17Wed9:515.910:235.23:28-1.24:06-0.97:215:37Waning Gibbous17Wed
18Thu10:425.611:195.24:22-1.04:54-0.87:205:38Waning Gibbous18Thu
19Fri11:335.25:18-0.65:44-0.67:205:39Waning Gibbous19Fri
20Sat12:155.112:254.86:17-0.36:36-0.47:205:40Third Quarter20Sat
21Sun1:135.01:194.47:200.07:31-0.27:195:41Third Quarter21Sun
22Mon2:114.92:144.18:230.28:260.07:195:42Third Quarter22Mon
23Tue3:094.93:113.99:240.39:230.17:195:43Waning Crescent23Tue
24Wed4:084.84:103.910:220.310:180.17:185:44Waning Crescent24Wed
25Thu5:034.95:053.911:150.311:110.17:185:45Waning Crescent25Thu
26Fri5:524.95:544.012:030.27:175:46Waning Crescent26Fri
27Sat6:365.06:384.212:470.17:165:47New Moon27Sat
28Sun7:165.07:204.312:43-0.11:270.07:165:48New Moon28Sun
29Mon7:545.17:594.31:24-0.22:050.07:155:49New Moon29Mon
30Tue8:305.08:364.42:02-0.22:390.07:155:50New Moon30Tue
31Wed9:044.99:104.42:39-0.13:110.07:145:51Waxing Crescent31Wed
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