Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Fort Sumter, SC.
Next low tide (tomorrow) : 6:20 am (0.1 ft)
Next high tide : in 5m at 11:56 pm (5.0 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8665728
Common Questions About Tides

Fort Sumter, SC Tides - May 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:544.26:020.75:390.86:318:01Waning Gibbous1Wed
2Thu12:145.012:394.16:450.96:241.06:308:02Third Quarter2Thu
3Fri1:014.91:304.17:341.07:181.16:298:03Third Quarter3Fri
4Sat1:554.82:254.18:261.08:211.16:288:04Third Quarter4Sat
5Sun2:514.73:214.39:190.99:251.06:278:04Third Quarter5Sun
6Mon3:484.84:194.610:100.710:280.86:268:05Waning Crescent6Mon
7Tue4:454.95:155.011:010.411:300.56:258:06Waning Crescent7Tue
8Wed5:405.06:085.511:500.16:258:07Waning Crescent8Wed
9Thu6:315.16:585.912:270.212:39-0.36:248:07Waning Crescent9Thu
10Fri7:215.17:466.21:22-0.11:27-0.56:238:08New Moon10Fri
11Sat8:115.18:356.52:16-0.32:16-0.76:228:09New Moon11Sat
12Sun9:035.19:276.53:09-0.43:06-0.76:218:09New Moon12Sun
13Mon9:585.010:226.44:01-0.43:57-0.66:218:10Waxing Crescent13Mon
14Tue10:564.811:206.24:54-0.34:51-0.46:208:11Waxing Crescent14Tue
15Wed11:584.75:50-0.25:47-0.26:198:12Waxing Crescent15Wed
16Thu12:216.01:024.76:480.06:490.16:198:12First Quarter16Thu
17Fri1:245.72:074.77:490.27:560.36:188:13First Quarter17Fri
18Sat2:265.43:104.88:490.29:020.46:188:14First Quarter18Sat
19Sun3:255.24:105.09:460.210:060.46:178:14First Quarter19Sun
20Mon4:215.15:065.210:380.111:060.46:168:15Waxing Gibbous20Mon
21Tue5:144.95:585.411:270.16:168:16Waxing Gibbous21Tue
22Wed6:024.86:435.612:010.312:110.06:158:16Waxing Gibbous22Wed
23Thu6:474.87:255.712:510.212:530.06:158:17Waxing Gibbous23Thu
24Fri7:284.78:045.81:380.21:330.06:148:18Full Moon24Fri
25Sat8:084.68:425.82:210.12:100.16:148:18Full Moon25Sat
26Sun8:484.59:195.73:030.22:470.26:148:19Full Moon26Sun
27Mon9:284.49:555.53:420.23:230.36:138:20Full Moon27Mon
28Tue10:074.310:315.44:200.43:580.56:138:20Waning Gibbous28Tue
29Wed10:474.211:085.24:570.54:350.66:138:21Waning Gibbous29Wed
30Thu11:264.111:455.15:340.65:130.76:128:21Waning Gibbous30Thu
31Fri12:084.16:140.75:570.86:128:22Waning Gibbous31Fri
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 3:08 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 transitional phase. Tonight's moon is 75% 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 Waning Gibbous (75% 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