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 1h 28m 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 - Mar 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:411.01:500.98:420.29:080.06:456:21First Quarter1Sun
2Mon2:330.92:400.99:380.410:050.16:446:22First Quarter2Mon
3Tue3:310.93:380.810:380.411:030.26:436:23First Quarter3Tue
4Wed4:320.94:390.811:370.56:426:23Waxing Gibbous4Wed
5Thu5:320.95:400.912:000.112:320.46:416:24Waxing Gibbous5Thu
6Fri6:250.96:340.912:520.11:210.36:406:24Waxing Gibbous6Fri
7Sat7:121.07:221.01:390.02:050.26:396:25Waxing Gibbous7Sat
8Sun7:541.18:071.02:21-0.12:450.16:386:25Full Moon8Sun
9Mon8:341.18:491.13:01-0.23:23-0.16:376:26Full Moon9Mon
10Tue9:131.19:301.13:39-0.24:00-0.26:366:27Full Moon10Tue
11Wed9:511.210:111.24:17-0.34:36-0.36:356:27Full Moon11Wed
12Thu10:291.210:541.24:56-0.35:15-0.36:346:28Waning Gibbous12Thu
13Fri11:081.111:381.25:36-0.25:56-0.46:336:28Waning Gibbous13Fri
14Sat11:491.16:20-0.16:41-0.46:326:29Waning Gibbous14Sat
15Sun12:251.212:351.17:090.07:32-0.36:316:29Waning Gibbous15Sun
16Mon1:181.11:271.08:040.18:31-0.26:296:30Third Quarter16Mon
17Tue2:181.12:291.09:070.29:38-0.26:286:30Third Quarter17Tue
18Wed3:251.13:391.010:170.210:48-0.26:276:31Third Quarter18Wed
19Thu4:351.14:511.011:260.211:56-0.26:266:31Waning Crescent19Thu
20Fri5:411.15:591.112:310.06:256:32Waning Crescent20Fri
21Sat6:401.27:001.212:58-0.31:29-0.16:246:32Waning Crescent21Sat
22Sun7:331.27:541.31:54-0.42:21-0.36:236:33Waning Crescent22Sun
23Mon8:211.38:431.32:46-0.43:10-0.46:226:34New Moon23Mon
24Tue9:051.39:291.33:34-0.43:56-0.56:206:34New Moon24Tue
25Wed9:481.310:131.34:20-0.44:41-0.56:196:35New Moon25Wed
26Thu10:281.210:561.35:04-0.35:23-0.46:186:35Waxing Crescent26Thu
27Fri11:071.211:371.25:48-0.16:06-0.36:176:36Waxing Crescent27Fri
28Sat11:461.16:310.06:48-0.26:166:36Waxing Crescent28Sat
29Sun12:191.112:261.07:150.27:330.06:156:37Waxing Crescent29Sun
30Mon1:021.11:091.08:010.48:220.26:146:37First Quarter30Mon
31Tue1:491.01:570.98:540.59:160.36:136:38First Quarter31Tue
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