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 : 11:34 am (0.5 ft)
Next high tide : in 3h 15m at 4:04 am (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 - Jun 1926

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:491.22:051.18:390.19:02-0.26:268:11Third Quarter1Tue
2Wed2:441.23:071.19:410.110:06-0.16:258:12Third Quarter2Wed
3Thu3:421.24:131.110:450.011:120.06:258:12Third Quarter3Thu
4Fri4:421.25:191.111:48-0.16:258:13Third Quarter4Fri
5Sat5:411.16:231.212:160.112:46-0.26:258:13Waning Crescent5Sat
6Sun6:391.27:221.21:160.11:41-0.36:258:14Waning Crescent6Sun
7Mon7:331.28:161.32:110.02:32-0.46:258:14Waning Crescent7Mon
8Tue8:241.29:051.33:020.03:21-0.46:258:14New Moon8Tue
9Wed9:121.29:511.33:510.04:07-0.46:258:15New Moon9Wed
10Thu9:571.210:351.34:370.04:52-0.46:258:15New Moon10Thu
11Fri10:401.111:171.25:220.15:36-0.36:258:16New Moon11Fri
12Sat11:211.111:571.26:050.16:19-0.26:258:16Waxing Crescent12Sat
13Sun12:031.16:490.27:01-0.16:258:16Waxing Crescent13Sun
14Mon12:381.112:451.07:320.37:450.06:258:17Waxing Crescent14Mon
15Tue1:181.11:291.08:180.38:300.26:258:17Waxing Crescent15Tue
16Wed1:591.02:150.99:050.49:180.36:258:17First Quarter16Wed
17Thu2:431.03:050.99:550.410:090.46:258:18First Quarter17Thu
18Fri3:291.04:000.910:460.411:040.46:258:18First Quarter18Fri
19Sat4:181.04:570.911:370.311:590.46:268:18First Quarter19Sat
20Sun5:091.05:541.012:260.26:268:19Waxing Gibbous20Sun
21Mon6:021.06:501.012:510.41:130.16:268:19Waxing Gibbous21Mon
22Tue6:551.07:431.11:420.32:00-0.16:268:19Waxing Gibbous22Tue
23Wed7:471.08:341.22:310.22:47-0.26:268:19Waxing Gibbous23Wed
24Thu8:381.19:241.23:180.23:34-0.46:278:19Full Moon24Thu
25Fri9:281.110:131.34:060.14:22-0.56:278:20Full Moon25Fri
26Sat10:191.211:021.34:540.05:11-0.66:278:20Full Moon26Sat
27Sun11:101.211:511.35:43-0.16:01-0.66:278:20Waning Gibbous27Sun
28Mon12:021.26:35-0.16:54-0.56:288:20Waning Gibbous28Mon
29Tue12:411.312:571.27:29-0.17:50-0.46:288:20Waning Gibbous29Tue
30Wed1:321.31:541.28:26-0.28:49-0.26:288:20Waning Gibbous30Wed
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 7:49 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 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