Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Fort Sumter, SC.
Next low tide : in 1h 17m at 3:25 pm (-0.7 ft)
Next high tide : 9:55 pm (6.3 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:22 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - Jul 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:045.31:574.97:380.08:090.36:158:31First Quarter1Sun
2Mon2:015.22:575.28:33-0.29:140.36:168:31First Quarter2Mon
3Tue3:015.13:595.59:30-0.310:190.26:168:31First Quarter3Tue
4Wed4:045.05:035.810:29-0.511:230.06:168:31Waxing Gibbous4Wed
5Thu5:095.06:056.111:28-0.66:178:31Waxing Gibbous5Thu
6Fri6:135.07:036.312:25-0.212:26-0.76:178:31Waxing Gibbous6Fri
7Sat7:135.07:596.41:22-0.41:22-0.86:188:30Full Moon7Sat
8Sun8:115.18:536.42:18-0.62:18-0.86:188:30Full Moon8Sun
9Mon9:075.19:466.33:11-0.63:11-0.76:198:30Full Moon9Mon
10Tue10:035.010:376.14:01-0.64:03-0.56:208:30Waning Gibbous10Tue
11Wed10:575.011:265.84:50-0.54:54-0.26:208:29Waning Gibbous11Wed
12Thu11:494.95:37-0.35:450.16:218:29Waning Gibbous12Thu
13Fri12:145.512:414.96:24-0.16:380.46:218:29Waning Gibbous13Fri
14Sat1:015.21:324.87:110.17:330.76:228:28Third Quarter14Sat
15Sun1:484.92:224.87:590.38:300.96:228:28Third Quarter15Sun
16Mon2:354.73:104.98:450.39:251.06:238:28Third Quarter16Mon
17Tue3:234.53:595.09:310.410:191.06:248:27Third Quarter17Tue
18Wed4:134.44:495.110:170.411:110.96:248:27Waning Crescent18Wed
19Thu5:054.45:385.211:040.46:258:26Waning Crescent19Thu
20Fri5:564.46:255.412:010.811:50 AM0.36:268:26Waning Crescent20Fri
21Sat6:444.47:085.512:480.712:350.26:268:25Waning Crescent21Sat
22Sun7:294.57:505.61:310.51:200.16:278:24New Moon22Sun
23Mon8:134.68:295.72:130.42:040.06:278:24New Moon23Mon
24Tue8:544.69:085.82:540.32:480.06:288:23New Moon24Tue
25Wed9:364.79:475.83:330.23:32-0.16:298:23New Moon25Wed
26Thu10:184.810:275.74:130.14:170.06:298:22Waxing Crescent26Thu
27Fri11:014.911:095.64:530.05:040.06:308:21Waxing Crescent27Fri
28Sat11:495.011:565.55:36-0.15:560.16:318:20Waxing Crescent28Sat
29Sun12:425.26:23-0.16:530.36:318:20First Quarter29Sun
30Mon12:485.41:415.37:14-0.17:550.46:328:19First Quarter30Mon
31Tue1:455.22:425.58:10-0.19:000.46:338:18First Quarter31Tue
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 6:40 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 2% 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 New Moon (2% 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