Tides Today & Tomorrow in South Fork, St. Lucie River, FL

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in South Fork, St. Lucie River, FL.
Next low tide : in 21m at 9:49 am (0.0 ft)
Next high tide : 3:26 pm (1.1 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:53 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8722376
Common Questions About Tides

South Fork, St. Lucie River, FL Tides - Oct 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:061.11:451.27:500.58:160.96:136:08Waning Gibbous1Thu
2Fri1:431.12:301.18:300.68:591.06:136:07Waning Gibbous2Fri
3Sat2:261.13:221.19:180.69:531.06:146:06Third Quarter3Sat
4Sun3:181.04:231.110:180.711:001.16:146:05Third Quarter4Sun
5Mon4:241.05:291.111:290.76:156:04Third Quarter5Mon
6Tue5:371.16:331.212:131.012:410.66:156:03Waning Crescent6Tue
7Wed6:491.27:321.21:190.81:450.56:166:01Waning Crescent7Wed
8Thu7:531.38:251.32:170.62:430.46:166:00Waning Crescent8Thu
9Fri8:511.49:141.43:100.33:370.36:175:59Waning Crescent9Fri
10Sat9:441.410:011.44:000.14:280.26:175:58New Moon10Sat
11Sun10:351.510:481.44:48-0.15:170.26:185:57New Moon11Sun
12Mon11:251.511:351.45:36-0.26:060.26:185:56New Moon12Mon
13Tue12:151.56:24-0.26:550.36:195:55Waxing Crescent13Tue
14Wed12:231.41:051.57:14-0.17:460.56:195:54Waxing Crescent14Wed
15Thu1:131.31:571.48:060.18:390.66:205:53Waxing Crescent15Thu
16Fri2:051.32:531.39:020.39:390.86:205:52First Quarter16Fri
17Sat3:021.23:531.210:050.510:440.96:215:51First Quarter17Sat
18Sun4:041.14:561.111:120.611:531.06:225:50First Quarter18Sun
19Mon5:121.16:001.112:200.76:225:49First Quarter19Mon
20Tue6:191.16:581.112:580.91:210.76:235:48Waxing Gibbous20Tue
21Wed7:201.17:471.11:540.82:150.76:235:47Waxing Gibbous21Wed
22Thu8:111.28:291.22:410.73:010.76:245:46Waxing Gibbous22Thu
23Fri8:551.29:071.23:220.63:420.76:255:46Waxing Gibbous23Fri
24Sat9:341.29:421.23:590.54:210.76:255:45Full Moon24Sat
25Sun10:111.310:171.24:330.44:560.76:265:44Full Moon25Sun
26Mon10:481.310:521.25:070.45:310.76:265:43Full Moon26Mon
27Tue11:251.311:281.25:390.46:040.76:275:42Full Moon27Tue
28Wed12:031.36:120.46:380.76:285:41Waning Gibbous28Wed
29Thu12:041.212:421.26:460.47:140.86:285:40Waning Gibbous29Thu
30Fri12:411.11:241.27:240.47:530.96:295:40Waning Gibbous30Fri
31Sat1:221.12:111.28:060.58:390.96:305:39Waning Gibbous31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8722376)

Common Questions About South Fork, St. Lucie River, FL Tides

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What time does the tide turn (slack tide) in South Fork, St. Lucie River, FL today?

Slack tide in South Fork, St. Lucie River, FL is approximately 12:37 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 South Fork, St. Lucie River, FL?

South Fork, St. Lucie River, FL is currently in a transitional phase. Tonight's moon is 27% 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 South Fork, St. Lucie River, FL 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 South Fork, St. Lucie River, FL?

Tide predictions for South Fork, St. Lucie River, FL 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 South Fork, St. Lucie River, FL?

Tide data for South Fork, St. Lucie River, FL is sourced from NOAA Station #8722376. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8722376.

What is the moon phase in South Fork, St. Lucie River, FL tonight?

Tonight the moon over South Fork, St. Lucie River, FL is Waxing Crescent (27% illuminated). This places South Fork, St. Lucie River, FL 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