Tides Today & Tomorrow in St. Lucie, FL

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in St. Lucie, FL.
Next low tide (tomorrow) : 9:41 am (0.3 ft)
Next high tide (tomorrow) : in 3h 17m at 2:23 am (1.1 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:53 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8722207
Common Questions About Tides

St. Lucie, FL Tides - Oct 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:511.311:491.26:040.66:300.96:136:08Waning Gibbous1Thu
2Fri12:361.36:440.67:131.16:146:07Waning Gibbous2Fri
3Sat12:321.21:281.27:320.78:071.16:146:06Third Quarter3Sat
4Sun1:241.22:291.28:320.79:141.26:156:05Third Quarter4Sun
5Mon2:301.23:351.29:430.710:271.16:156:04Third Quarter5Mon
6Tue3:431.24:391.310:550.711:330.96:166:03Waning Crescent6Tue
7Wed4:551.35:381.411:590.66:166:02Waning Crescent7Wed
8Thu5:591.46:311.412:310.712:570.46:176:01Waning Crescent8Thu
9Fri6:571.57:201.51:240.41:510.36:175:59Waning Crescent9Fri
10Sat7:501.68:071.62:140.12:420.26:185:58New Moon10Sat
11Sun8:411.78:541.63:02-0.13:310.26:185:57New Moon11Sun
12Mon9:311.79:411.63:50-0.24:200.26:195:56New Moon12Mon
13Tue10:211.710:291.54:38-0.25:090.46:195:55Waxing Crescent13Tue
14Wed11:111.611:191.55:28-0.16:000.56:205:54Waxing Crescent14Wed
15Thu12:031.56:200.16:530.76:205:53Waxing Crescent15Thu
16Fri12:111.412:591.47:160.37:530.96:215:52First Quarter16Fri
17Sat1:081.31:591.38:190.58:581.06:225:51First Quarter17Sat
18Sun2:101.33:021.39:260.710:071.06:225:50First Quarter18Sun
19Mon3:181.24:061.310:340.811:121.06:235:49First Quarter19Mon
20Tue4:251.25:041.311:350.86:235:48Waxing Gibbous20Tue
21Wed5:261.25:531.312:080.912:290.86:245:47Waxing Gibbous21Wed
22Thu6:171.36:351.312:550.81:150.86:255:46Waxing Gibbous22Thu
23Fri7:011.37:131.31:360.71:560.76:255:46Waxing Gibbous23Fri
24Sat7:401.47:481.32:130.62:350.76:265:45Full Moon24Sat
25Sun8:171.48:231.32:470.53:100.76:265:44Full Moon25Sun
26Mon8:541.48:581.33:210.43:450.76:275:43Full Moon26Mon
27Tue9:311.49:341.33:530.44:180.76:285:42Full Moon27Tue
28Wed10:091.410:101.34:260.44:520.86:285:41Waning Gibbous28Wed
29Thu10:481.410:471.35:000.45:280.96:295:40Waning Gibbous29Thu
30Fri11:301.311:281.25:380.56:070.96:305:40Waning Gibbous30Fri
31Sat12:171.36:200.56:531.06:305:39Waning Gibbous31Sat
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 6:02 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 36% 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 (36% 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