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

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in South Fork, St. Lucie River, FL.
Next low tide : in 2h 07m at 11:03 pm (0.5 ft)
Next high tide (tomorrow) : 4:17 am (1.0 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:53 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8722376
Common Questions About Tides

South Fork, St. Lucie River, FL Tides - Feb 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:210.84:260.811:160.311:420.07:076:02Third Quarter1Fri
2Sat5:160.85:170.712:130.47:066:03Third Quarter2Sat
3Sun6:150.86:140.712:370.01:100.47:056:04Waning Crescent3Sun
4Mon7:150.87:130.71:320.02:050.47:056:04Waning Crescent4Mon
5Tue8:110.88:090.82:240.02:560.37:046:05Waning Crescent5Tue
6Wed9:000.89:000.83:13-0.13:430.37:046:06Waning Crescent6Wed
7Thu9:450.99:470.83:57-0.14:260.27:036:07Waning Crescent7Thu
8Fri10:260.910:300.94:39-0.25:060.17:026:07New Moon8Fri
9Sat11:051.011:130.95:18-0.35:440.07:026:08New Moon9Sat
10Sun11:431.011:540.95:56-0.36:21-0.17:016:09New Moon10Sun
11Mon12:201.06:34-0.36:58-0.27:006:09Waxing Crescent11Mon
12Tue12:361.012:581.07:13-0.37:36-0.37:006:10Waxing Crescent12Tue
13Wed1:191.01:361.07:55-0.28:18-0.36:596:11Waxing Crescent13Wed
14Thu2:041.02:160.98:40-0.19:05-0.36:586:12Waxing Crescent14Thu
15Fri2:540.93:010.99:310.09:58-0.36:576:12First Quarter15Fri
16Sat3:500.93:540.910:290.110:59-0.36:576:13First Quarter16Sat
17Sun4:540.94:570.811:350.26:566:14First Quarter17Sun
18Mon6:040.96:090.812:06-0.312:460.26:556:14First Quarter18Mon
19Tue7:150.97:220.91:16-0.31:540.26:546:15Waxing Gibbous19Tue
20Wed8:201.08:290.92:22-0.42:570.06:536:16Waxing Gibbous20Wed
21Thu9:181.09:281.03:22-0.53:54-0.16:526:16Waxing Gibbous21Thu
22Fri10:091.110:211.14:18-0.54:47-0.26:516:17Full Moon22Fri
23Sat10:551.111:111.15:09-0.65:35-0.46:516:18Full Moon23Sat
24Sun11:381.111:571.15:57-0.56:21-0.46:506:18Full Moon24Sun
25Mon12:191.16:42-0.57:05-0.46:496:19Waning Gibbous25Mon
26Tue12:411.112:581.07:27-0.37:48-0.46:486:19Waning Gibbous26Tue
27Wed1:241.01:361.08:10-0.28:30-0.36:476:20Waning Gibbous27Wed
28Thu2:061.02:140.98:530.09:13-0.26:466:21Waning Gibbous28Thu
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 1:40 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 South Fork, St. Lucie River, FL?

South Fork, St. Lucie River, FL is currently in a transitional phase. Tonight's moon is 36% 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 First Quarter (36% 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