Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 4:18 am (0.4 ft)
Next high tide : in 6h 25m at 9:59 pm (5.4 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:15 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Dec 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:136.09:225.02:43-0.23:270.07:045:13Waxing Crescent1Tue
2Wed9:565.710:064.83:250.14:100.27:045:13Waxing Crescent2Wed
3Thu10:385.510:514.64:060.34:530.47:055:13Waxing Crescent3Thu
4Fri11:225.211:394.54:490.65:370.67:065:13Waxing Crescent4Fri
5Sat12:085.05:350.86:230.87:075:13First Quarter5Sat
6Sun12:294.412:564.86:261.07:110.87:085:13First Quarter6Sun
7Mon1:214.41:464.77:221.17:590.87:085:13First Quarter7Mon
8Tue2:134.52:374.68:191.18:460.77:095:13First Quarter8Tue
9Wed3:054.73:294.69:161.09:340.57:105:13Waxing Gibbous9Wed
10Thu3:584.94:214.610:110.810:220.37:115:13Waxing Gibbous10Thu
11Fri4:485.15:104.711:040.611:090.17:115:13Waxing Gibbous11Fri
12Sat5:355.45:574.811:530.311:55-0.27:125:14Waxing Gibbous12Sat
13Sun6:195.66:414.812:410.17:135:14Full Moon13Sun
14Mon7:025.97:254.912:41-0.41:28-0.17:135:14Full Moon14Mon
15Tue7:466.08:114.91:28-0.62:14-0.37:145:15Full Moon15Tue
16Wed8:336.09:004.92:16-0.73:01-0.37:155:15Waning Gibbous16Wed
17Thu9:226.09:534.93:05-0.73:49-0.47:155:15Waning Gibbous17Thu
18Fri10:135.910:494.93:56-0.64:39-0.37:165:16Waning Gibbous18Fri
19Sat11:085.711:504.94:50-0.55:33-0.37:165:16Waning Gibbous19Sat
20Sun12:075.55:50-0.36:30-0.27:175:17Third Quarter20Sun
21Mon12:545.01:085.36:54-0.17:29-0.27:175:17Third Quarter21Mon
22Tue1:575.12:095.18:00-0.18:28-0.37:185:18Third Quarter22Tue
23Wed3:005.23:104.99:05-0.19:26-0.47:185:18Waning Crescent23Wed
24Thu4:025.44:104.910:08-0.110:22-0.47:195:19Waning Crescent24Thu
25Fri5:005.65:074.811:06-0.211:15-0.57:195:19Waning Crescent25Fri
26Sat5:525.75:584.812:00-0.37:205:20Waning Crescent26Sat
27Sun6:405.86:454.812:05-0.612:50-0.47:205:20New Moon27Sun
28Mon7:255.87:304.812:52-0.61:37-0.47:205:21New Moon28Mon
29Tue8:075.78:144.71:37-0.52:20-0.47:215:22New Moon29Tue
30Wed8:485.58:554.62:19-0.43:02-0.37:215:22New Moon30Wed
31Thu9:275.39:374.53:00-0.23:40-0.17:215:23Waxing Crescent31Thu
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 1:08 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 97% 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 Full Moon (97% 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