Tides Today & Tomorrow in St. Lucie, FL

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in St. Lucie, FL.
Next low tide : in 1h 17m at 6:31 am (-0.1 ft)
Next high tide : 12:00 pm (1.4 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:52 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8722207
Common Questions About Tides

St. Lucie, FL Tides - Sep 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:321.311:461.36:000.36:170.46:597:43Waning Gibbous1Fri
2Sat12:111.36:340.36:520.57:007:41Waning Gibbous2Sat
3Sun12:211.212:511.37:100.37:300.67:007:40Waning Gibbous3Sun
4Mon12:591.21:351.27:500.48:130.77:017:39Waning Gibbous4Mon
5Tue1:411.22:251.28:370.49:050.87:017:38Third Quarter5Tue
6Wed2:291.23:211.29:330.410:060.87:027:37Third Quarter6Wed
7Thu3:281.24:251.210:380.411:140.87:027:36Third Quarter7Thu
8Fri4:351.25:311.311:460.47:037:35Waning Crescent8Fri
9Sat5:451.36:331.312:220.712:510.37:037:34Waning Crescent9Sat
10Sun6:521.37:311.41:230.51:510.17:047:32Waning Crescent10Sun
11Mon7:521.48:241.52:200.32:470.07:047:31Waning Crescent11Mon
12Tue8:481.59:151.63:140.03:40-0.17:047:30New Moon12Tue
13Wed9:411.610:041.64:05-0.14:32-0.17:057:29New Moon13Wed
14Thu10:331.610:511.64:55-0.25:22-0.17:057:28New Moon14Thu
15Fri11:231.611:391.65:45-0.26:120.07:067:27Waxing Crescent15Fri
16Sat12:131.66:35-0.27:030.27:067:26Waxing Crescent16Sat
17Sun12:271.51:041.57:260.07:550.47:077:24Waxing Crescent17Sun
18Mon1:171.41:561.48:200.28:510.67:077:23First Quarter18Mon
19Tue2:091.32:521.39:180.49:510.87:087:22First Quarter19Tue
20Wed3:051.33:501.310:190.510:540.97:087:21First Quarter20Wed
21Thu4:051.24:511.211:220.611:560.97:087:20First Quarter21Thu
22Fri5:071.25:501.212:210.77:097:19Waxing Gibbous22Fri
23Sat6:071.26:431.212:530.91:160.77:097:17Waxing Gibbous23Sat
24Sun6:011.26:291.31:430.81:040.76:106:16Waxing Gibbous24Sun
25Mon6:481.37:101.31:280.71:470.66:106:15Waxing Gibbous25Mon
26Tue7:301.37:491.42:080.62:270.66:116:14Full Moon26Tue
27Wed8:101.48:261.42:450.53:040.66:116:13Full Moon27Wed
28Thu8:491.49:031.43:200.43:400.56:126:12Full Moon28Thu
29Fri9:281.49:391.43:540.44:140.66:126:11Full Moon29Fri
30Sat10:061.410:161.44:280.44:490.66:136:09Waning Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8722207)

Common Questions About St. Lucie, FL Tides

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

Slack tide in St. Lucie, FL is approximately 9:15 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 St. Lucie, FL?

St. Lucie, FL is currently in a spring phase. Tonight's moon is 11% 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 St. Lucie, 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 St. Lucie, FL?

Tide predictions for St. Lucie, 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 St. Lucie, FL?

Tide data for St. Lucie, FL is sourced from NOAA Station #8722207. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8722207.

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

Tonight the moon over St. Lucie, FL is Waxing Crescent (11% illuminated). This places St. Lucie, FL 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