Tides Today & Tomorrow in St. Lucie, FL

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in St. Lucie, FL.
Next low tide : in 3h 00m at 8:50 am (0.2 ft)
Next high tide : 2:19 pm (1.2 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 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:091.57:321.51:380.42:030.46:136:08Waxing Gibbous1Sun
2Mon7:581.58:141.52:240.32:490.46:146:07Full Moon2Mon
3Tue8:421.68:541.53:080.23:330.46:146:05Full Moon3Tue
4Wed9:241.59:321.43:490.24:140.56:156:04Full Moon4Wed
5Thu10:041.510:091.44:280.24:540.66:156:03Waning Gibbous5Thu
6Fri10:431.510:461.45:070.35:330.76:166:02Waning Gibbous6Fri
7Sat11:221.411:241.35:460.46:130.96:166:01Waning Gibbous7Sat
8Sun12:031.36:270.66:541.06:176:00Waning Gibbous8Sun
9Mon12:041.212:471.37:110.77:411.16:175:59Third Quarter9Mon
10Tue12:491.21:381.28:010.98:371.26:185:58Third Quarter10Tue
11Wed1:411.12:341.28:591.09:411.26:195:57Third Quarter11Wed
12Thu2:421.13:331.210:041.010:451.26:195:56Third Quarter12Thu
13Fri3:481.14:311.211:051.011:401.16:205:55Third Quarter13Fri
14Sat4:511.25:241.311:590.96:205:54Waning Crescent14Sat
15Sun5:481.36:111.312:280.912:480.86:215:53Waning Crescent15Sun
16Mon6:381.46:551.41:100.71:330.76:215:52Waning Crescent16Mon
17Tue7:261.57:381.41:510.52:160.66:225:51New Moon17Tue
18Wed8:121.58:211.52:320.32:590.56:225:50New Moon18Wed
19Thu8:571.69:041.53:140.13:430.56:235:49New Moon19Thu
20Fri9:441.69:491.53:570.04:280.56:245:48New Moon20Fri
21Sat10:331.610:371.54:440.05:150.56:245:47Waxing Crescent21Sat
22Sun11:241.511:291.45:340.16:060.66:255:46Waxing Crescent22Sun
23Mon12:191.56:280.27:030.76:255:45Waxing Crescent23Mon
24Tue12:271.41:191.47:290.38:080.86:265:44First Quarter24Tue
25Wed1:311.32:221.48:370.59:200.86:275:43First Quarter25Wed
26Thu2:411.33:271.49:490.610:300.86:275:42First Quarter26Thu
27Fri3:531.34:301.410:580.611:330.66:285:42Waxing Gibbous27Fri
28Sat5:001.45:271.412:000.66:295:41Waxing Gibbous28Sat
29Sun6:001.46:181.412:280.512:540.66:295:40Waxing Gibbous29Sun
30Mon6:521.57:041.41:160.31:430.66:305:39Waxing Gibbous30Mon
31Tue7:381.57:461.42:010.22:280.66:315:38Full Moon31Tue
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 11:34 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