Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide : 10:27 pm (0.6 ft)
Next high tide : in 6h 25m at 4:19 pm (5.2 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:12 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Dec 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:045.711:344.64:300.15:250.57:045:13Waning Gibbous1Mon
2Tue11:575.45:240.46:190.77:045:13Third Quarter2Tue
3Wed12:314.512:495.16:220.77:130.87:055:13Third Quarter3Wed
4Thu1:274.51:404.97:230.98:040.87:065:13Third Quarter4Thu
5Fri2:214.62:294.78:221.08:520.87:075:13Third Quarter5Fri
6Sat3:144.73:184.69:180.99:370.77:085:13Waning Crescent6Sat
7Sun4:054.94:084.510:120.910:200.67:085:13Waning Crescent7Sun
8Mon4:535.14:564.511:020.711:010.57:095:13Waning Crescent8Mon
9Tue5:385.35:414.511:490.611:410.47:105:13Waning Crescent9Tue
10Wed6:195.46:244.512:330.57:115:13New Moon10Wed
11Thu6:595.57:044.512:210.31:150.47:115:13New Moon11Thu
12Fri7:375.57:434.41:000.21:560.37:125:14New Moon12Fri
13Sat8:155.58:214.41:390.12:360.37:135:14New Moon13Sat
14Sun8:525.58:594.42:200.13:150.37:135:14Waxing Crescent14Sun
15Mon9:315.49:394.43:010.03:560.37:145:15Waxing Crescent15Mon
16Tue10:125.410:254.43:450.14:380.37:155:15Waxing Crescent16Tue
17Wed10:575.311:174.54:340.15:250.27:155:15Waxing Crescent17Wed
18Thu11:495.25:280.26:170.27:165:16First Quarter18Thu
19Fri12:164.612:455.06:310.37:110.07:165:16First Quarter19Fri
20Sat1:194.81:454.97:380.38:08-0.27:175:17First Quarter20Sat
21Sun2:235.12:474.88:460.39:04-0.37:175:17First Quarter21Sun
22Mon3:285.43:514.79:530.110:02-0.57:185:18Waxing Gibbous22Mon
23Tue4:325.74:544.710:57-0.110:59-0.77:185:18Waxing Gibbous23Tue
24Wed5:316.05:524.711:56-0.311:54-0.87:195:19Waxing Gibbous24Wed
25Thu6:276.16:474.812:52-0.47:195:19Full Moon25Thu
26Fri7:206.17:404.812:48-0.91:44-0.47:205:20Full Moon26Fri
27Sat8:116.08:334.71:40-0.92:34-0.47:205:20Full Moon27Sat
28Sun9:015.99:234.72:31-0.73:22-0.37:205:21Waning Gibbous28Sun
29Mon9:485.610:134.53:20-0.54:07-0.17:215:22Waning Gibbous29Mon
30Tue10:345.311:034.44:07-0.34:520.17:215:22Waning Gibbous30Tue
31Wed11:185.011:554.44:560.15:360.37:215:23Waning Gibbous31Wed
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 7:23 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 67% 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 First Quarter (67% 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