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 3h 47m 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 - Oct 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:351.25:231.311:450.76:136:08Waxing Gibbous1Sat
2Sun5:381.36:161.312:190.912:420.66:146:06Waxing Gibbous2Sun
3Mon6:321.37:001.31:100.81:300.66:146:05Waxing Gibbous3Mon
4Tue7:181.47:381.41:540.72:130.66:156:04Waxing Gibbous4Tue
5Wed7:591.48:131.42:330.62:520.66:156:03Full Moon5Wed
6Thu8:361.48:461.43:090.53:290.66:166:02Full Moon6Thu
7Fri9:111.49:191.43:420.54:040.76:166:01Full Moon7Fri
8Sat9:471.49:521.34:150.44:370.76:176:00Full Moon8Sat
9Sun10:231.410:261.34:470.55:100.86:185:59Waning Gibbous9Sun
10Mon11:001.411:011.35:190.55:430.96:185:58Waning Gibbous10Mon
11Tue11:391.311:381.25:530.66:191.06:195:57Waning Gibbous11Tue
12Wed12:231.36:310.77:011.16:195:56Waning Gibbous12Wed
13Thu12:201.21:141.37:180.77:521.26:205:55Third Quarter13Thu
14Fri1:111.22:121.28:150.88:571.26:205:54Third Quarter14Fri
15Sat2:151.23:151.29:240.810:091.16:215:53Third Quarter15Sat
16Sun3:261.24:181.310:350.711:150.96:215:52Third Quarter16Sun
17Mon4:371.35:171.311:410.66:225:51Waning Crescent17Mon
18Tue5:411.46:101.412:130.712:390.56:235:50Waning Crescent18Tue
19Wed6:391.57:001.51:060.41:330.46:235:49Waning Crescent19Wed
20Thu7:331.67:481.51:550.12:240.36:245:48New Moon20Thu
21Fri8:241.78:361.62:44-0.13:140.26:245:47New Moon21Fri
22Sat9:141.79:241.63:32-0.24:030.36:255:46New Moon22Sat
23Sun10:041.710:121.54:20-0.24:520.36:265:45Waxing Crescent23Sun
24Mon10:551.611:021.55:10-0.15:430.56:265:44Waxing Crescent24Mon
25Tue11:471.511:551.46:030.06:370.66:275:43Waxing Crescent25Tue
26Wed12:431.56:590.27:360.86:275:42Waxing Crescent26Wed
27Thu12:521.31:421.48:010.58:410.96:285:41First Quarter27Thu
28Fri1:551.32:441.39:080.69:501.06:295:41First Quarter28Fri
29Sat3:021.23:471.310:160.710:550.96:295:40First Quarter29Sat
30Sun4:091.24:461.311:190.811:520.86:305:39Waxing Gibbous30Sun
31Mon5:111.25:361.312:140.86:315:38Waxing Gibbous31Mon
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