Tides Today & Tomorrow in Fort Sumter, SC

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Fort Sumter, SC.
Next low tide : in 59m at 3:42 am (0.4 ft)
Next high tide : 9:31 am (4.3 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 - Jan 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:465.01:564.97:46-0.18:13-0.27:215:24Third Quarter1Thu
2Fri2:455.02:524.68:480.09:08-0.27:215:25Third Quarter2Fri
3Sat3:435.13:484.59:480.110:01-0.27:225:26Waning Crescent3Sat
4Sun4:385.14:414.410:440.010:51-0.27:225:26Waning Crescent4Sun
5Mon5:275.25:304.411:350.011:38-0.27:225:27Waning Crescent5Mon
6Tue6:125.36:154.512:22-0.17:225:28Waning Crescent6Tue
7Wed6:535.36:574.512:22-0.31:05-0.27:225:29New Moon7Wed
8Thu7:335.37:384.51:03-0.31:46-0.27:225:30New Moon8Thu
9Fri8:115.38:174.51:42-0.32:24-0.27:225:31New Moon9Fri
10Sat8:485.28:554.42:19-0.23:00-0.17:225:31New Moon10Sat
11Sun9:235.09:314.42:55-0.13:340.07:225:32Waxing Crescent11Sun
12Mon9:564.910:054.33:310.04:080.07:225:33Waxing Crescent12Mon
13Tue10:284.710:404.34:080.14:430.17:225:34Waxing Crescent13Tue
14Wed11:024.611:204.34:480.25:210.17:215:35Waxing Crescent14Wed
15Thu11:424.45:340.46:060.17:215:36First Quarter15Thu
16Fri12:074.412:314.36:300.46:570.17:215:37First Quarter16Fri
17Sat1:024.51:284.27:320.57:53-0.17:215:38First Quarter17Sat
18Sun2:034.72:314.28:380.48:53-0.27:205:39First Quarter18Sun
19Mon3:094.93:394.39:450.29:54-0.57:205:40Waxing Gibbous19Mon
20Tue4:175.24:474.510:49-0.110:56-0.87:205:40Waxing Gibbous20Tue
21Wed5:215.65:484.711:48-0.511:54-1.17:195:41Waxing Gibbous21Wed
22Thu6:195.96:465.012:44-0.87:195:42Full Moon22Thu
23Fri7:156.17:425.212:51-1.41:37-1.07:185:43Full Moon23Fri
24Sat8:096.28:375.31:45-1.52:28-1.27:185:44Full Moon24Sat
25Sun9:026.19:325.42:39-1.53:18-1.27:175:45Waning Gibbous25Sun
26Mon9:545.910:275.33:32-1.44:07-1.17:175:46Waning Gibbous26Mon
27Tue10:455.611:225.24:25-1.14:57-0.97:165:47Waning Gibbous27Tue
28Wed11:375.25:21-0.85:48-0.67:165:48Waning Gibbous28Wed
29Thu12:195.112:304.96:19-0.46:42-0.47:155:49Third Quarter29Thu
30Fri1:164.91:244.57:20-0.17:38-0.27:155:50Third Quarter30Fri
31Sat2:134.82:194.38:210.18:340.07:145:51Third Quarter31Sat
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 6:36 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