Tides Today & Tomorrow in St. Lucie, FL

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in St. Lucie, FL.
Next low tide (tomorrow) : 12:08 am (0.9 ft)
Next high tide : in 4h 18m at 5:04 pm (1.0 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:55 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8722207
Common Questions About Tides

St. Lucie, FL Tides - Aug 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:461.27:411.31:260.31:52-0.36:448:10Waxing Gibbous1Sat
2Sun7:491.28:381.32:250.12:49-0.46:448:09Waxing Gibbous2Sun
3Mon8:481.39:311.43:210.03:45-0.56:458:09Full Moon3Mon
4Tue9:441.410:221.44:15-0.14:39-0.66:468:08Full Moon4Tue
5Wed10:381.411:111.55:08-0.25:31-0.56:468:07Full Moon5Wed
6Thu11:311.46:01-0.36:24-0.46:478:07Waning Gibbous6Thu
7Fri12:001.412:231.46:53-0.37:17-0.36:478:06Waning Gibbous7Fri
8Sat12:481.41:151.37:46-0.28:10-0.16:488:05Waning Gibbous8Sat
9Sun1:361.32:081.38:39-0.19:050.26:488:04Third Quarter9Sun
10Mon2:261.23:031.29:350.010:030.36:498:03Third Quarter10Mon
11Tue3:171.24:011.110:320.111:020.56:498:03Third Quarter11Tue
12Wed4:111.15:001.111:290.26:508:02Third Quarter12Wed
13Thu5:081.15:591.112:000.612:250.36:508:01Waning Crescent13Thu
14Fri6:051.16:541.112:560.61:180.36:518:00Waning Crescent14Fri
15Sat6:591.17:441.11:480.62:070.36:517:59Waning Crescent15Sat
16Sun7:481.18:281.22:350.62:520.26:527:58Waning Crescent16Sun
17Mon8:331.19:091.23:190.53:340.26:527:57New Moon17Mon
18Tue9:161.29:471.23:590.44:130.26:537:56New Moon18Tue
19Wed9:571.210:251.34:370.44:500.26:537:55New Moon19Wed
20Thu10:371.211:011.35:140.35:260.26:547:55New Moon20Thu
21Fri11:161.211:381.35:490.36:020.26:547:54Waxing Crescent21Fri
22Sat11:561.26:240.36:390.36:557:53Waxing Crescent22Sat
23Sun12:151.312:381.27:000.37:180.36:557:52Waxing Crescent23Sun
24Mon12:521.21:221.27:410.28:020.46:567:51Waxing Crescent24Mon
25Tue1:331.22:101.28:260.28:530.56:567:50First Quarter25Tue
26Wed2:191.23:061.29:200.39:510.66:577:48First Quarter26Wed
27Thu3:121.24:081.210:210.210:570.66:577:47First Quarter27Thu
28Fri4:151.25:151.211:280.26:587:46First Quarter28Fri
29Sat5:241.26:211.312:050.612:340.16:587:45Waxing Gibbous29Sat
30Sun6:331.37:231.41:100.51:370.06:597:44Waxing Gibbous30Sun
31Mon7:371.48:191.42:100.32:35-0.16:597:43Waxing 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 8:36 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 St. Lucie, FL?

St. Lucie, FL is currently in a transitional phase. Tonight's moon is 65% 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 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 First Quarter (65% illuminated). This places St. Lucie, 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