Tides Today & Tomorrow in St. Lucie, FL

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in St. Lucie, FL.
Next low tide : 10:54 pm (0.5 ft)
Next high tide : in 3h 11m at 3:53 pm (1.0 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:39 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8722207
Common Questions About Tides

St. Lucie, FL Tides - Jan 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:101.36:32-0.37:05-0.27:115:38Waxing Crescent1Fri
2Sat12:371.21:001.27:28-0.18:01-0.27:115:38First Quarter2Sat
3Sun1:351.21:521.18:280.09:01-0.27:125:39First Quarter3Sun
4Mon2:371.12:481.19:310.110:02-0.27:125:40First Quarter4Mon
5Tue3:411.13:491.010:350.211:04-0.27:125:40First Quarter5Tue
6Wed4:471.14:521.011:380.37:125:41Waxing Gibbous6Wed
7Thu5:511.15:541.012:03-0.312:380.37:125:42Waxing Gibbous7Thu
8Fri6:491.16:511.01:00-0.31:330.27:125:43Waxing Gibbous8Fri
9Sat7:411.17:431.11:53-0.32:240.27:125:43Full Moon9Sat
10Sun8:271.18:301.12:42-0.33:110.17:135:44Full Moon10Sun
11Mon9:091.19:131.13:27-0.33:550.17:135:45Full Moon11Mon
12Tue9:481.19:541.14:10-0.34:370.07:135:46Full Moon12Tue
13Wed10:251.110:341.04:51-0.25:170.07:135:46Waning Gibbous13Wed
14Thu11:001.111:131.05:30-0.25:560.07:135:47Waning Gibbous14Thu
15Fri11:341.011:531.06:080.06:340.07:125:48Waning Gibbous15Fri
16Sat12:091.06:450.17:110.17:125:49Waning Gibbous16Sat
17Sun12:340.912:441.07:250.27:510.17:125:50Third Quarter17Sun
18Mon1:170.91:230.98:070.38:340.17:125:50Third Quarter18Mon
19Tue2:060.92:070.98:560.49:240.17:125:51Third Quarter19Tue
20Wed3:000.92:580.89:530.510:200.17:125:52Third Quarter20Wed
21Thu4:020.93:580.810:550.511:200.07:115:53Third Quarter21Thu
22Fri5:060.95:020.911:560.47:115:54Waning Crescent22Fri
23Sat6:081.06:060.912:18-0.112:530.37:115:54Waning Crescent23Sat
24Sun7:041.07:051.01:13-0.31:470.27:115:55Waning Crescent24Sun
25Mon7:551.18:001.12:06-0.52:370.07:105:56New Moon25Mon
26Tue8:431.28:521.22:57-0.63:26-0.27:105:57New Moon26Tue
27Wed9:291.39:441.23:46-0.74:15-0.47:105:58New Moon27Wed
28Thu10:141.310:341.24:35-0.75:03-0.57:095:58Waxing Crescent28Thu
29Fri11:001.311:261.25:25-0.65:53-0.67:095:59Waxing Crescent29Fri
30Sat11:461.26:16-0.56:43-0.67:086:00Waxing Crescent30Sat
31Sun12:191.212:341.27:09-0.37:37-0.67:086:01Waxing Crescent31Sun
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 7:23 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 neap phase. Tonight's moon is 52% 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 minimum.

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 (52% illuminated). This places St. Lucie, FL in a neap tide cycle, so tidal ranges are near their weekly minimum 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