Tides Today & Tomorrow in St. Lucie, FL

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in St. Lucie, FL.
Next low tide : 8:27 pm (0.4 ft)
Next high tide : in 3h 12m at 1:32 pm (1.3 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 6:53 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8722207
Common Questions About Tides

St. Lucie, FL Tides - May 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:361.39:161.43:14-0.13:33-0.56:427:54New Moon1Wed
2Thu9:251.310:051.44:03-0.14:21-0.66:417:54New Moon2Thu
3Fri10:121.310:521.44:52-0.15:09-0.56:407:55New Moon3Fri
4Sat10:581.211:371.35:390.05:56-0.46:407:56Waxing Crescent4Sat
5Sun11:441.26:250.16:43-0.36:397:56Waxing Crescent5Sun
6Mon12:231.212:291.17:130.27:31-0.16:387:57Waxing Crescent6Mon
7Tue1:081.21:161.18:020.38:210.16:377:57Waxing Crescent7Tue
8Wed1:541.12:051.08:550.49:150.36:377:58First Quarter8Wed
9Thu2:421.02:581.09:510.510:110.46:367:58First Quarter9Thu
10Fri3:311.03:550.910:480.511:090.56:357:59First Quarter10Fri
11Sat4:221.04:540.911:430.56:358:00First Quarter11Sat
12Sun5:141.05:511.012:050.512:340.46:348:00Waxing Gibbous12Sun
13Mon6:051.06:451.012:580.51:200.36:338:01Waxing Gibbous13Mon
14Tue6:531.07:341.11:450.52:020.16:338:01Waxing Gibbous14Tue
15Wed7:401.08:201.12:300.42:430.06:328:02Waxing Gibbous15Wed
16Thu8:241.19:051.23:110.33:22-0.16:328:02Full Moon16Thu
17Fri9:081.19:481.23:520.34:02-0.26:318:03Full Moon17Fri
18Sat9:511.110:331.24:320.24:43-0.36:318:04Full Moon18Sat
19Sun10:351.111:171.35:130.25:26-0.36:308:04Full Moon19Sun
20Mon11:201.15:570.26:11-0.36:308:05Waning Gibbous20Mon
21Tue12:031.212:081.16:430.27:00-0.36:298:05Waning Gibbous21Tue
22Wed12:511.21:001.17:330.27:53-0.26:298:06Waning Gibbous22Wed
23Thu1:401.21:561.18:290.18:51-0.16:288:06Waning Gibbous23Thu
24Fri2:331.22:571.19:290.19:540.06:288:07Third Quarter24Fri
25Sat3:281.24:021.110:310.010:590.16:288:08Third Quarter25Sat
26Sun4:251.15:081.111:33-0.16:278:08Third Quarter26Sun
27Mon5:241.16:121.212:030.112:32-0.26:278:09Waning Crescent27Mon
28Tue6:231.17:121.21:040.11:28-0.36:278:09Waning Crescent28Tue
29Wed7:191.28:081.32:010.12:21-0.46:268:10Waning Crescent29Wed
30Thu8:131.28:591.32:540.13:12-0.46:268:10New Moon30Thu
31Fri9:041.29:481.33:440.14:01-0.46:268:11New Moon31Fri
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 4:59 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 27% 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 Waxing Crescent (27% 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