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 1m 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 - Jun 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:211.03:531.010:250.310:480.46:268:11First Quarter1Thu
2Fri4:121.04:551.011:210.111:500.36:258:12First Quarter2Fri
3Sat5:061.05:581.112:180.06:258:12Waxing Gibbous3Sat
4Sun6:031.16:581.212:500.31:13-0.26:258:13Waxing Gibbous4Sun
5Mon7:021.17:571.21:480.22:08-0.46:258:13Waxing Gibbous5Mon
6Tue7:591.18:531.32:430.13:02-0.56:258:14Full Moon6Tue
7Wed8:561.29:471.33:370.03:56-0.66:258:14Full Moon7Wed
8Thu9:511.210:401.44:300.04:50-0.76:258:15Full Moon8Thu
9Fri10:471.311:321.45:23-0.15:44-0.66:258:15Full Moon9Fri
10Sat11:421.26:18-0.16:40-0.56:258:15Waning Gibbous10Sat
11Sun12:241.312:371.27:14-0.17:36-0.46:258:16Waning Gibbous11Sun
12Mon1:151.31:341.28:11-0.18:34-0.26:258:16Waning Gibbous12Mon
13Tue2:061.22:321.19:100.09:330.06:258:17Third Quarter13Tue
14Wed2:581.13:311.110:090.010:330.26:258:17Third Quarter14Wed
15Thu3:501.14:311.111:050.011:320.36:258:17Third Quarter15Thu
16Fri4:431.05:301.011:590.06:258:18Third Quarter16Fri
17Sat5:351.06:261.012:280.412:500.06:258:18Waning Crescent17Sat
18Sun6:261.07:171.01:200.41:380.06:258:18Waning Crescent18Sun
19Mon7:151.08:041.12:080.42:230.06:268:18Waning Crescent19Mon
20Tue8:011.08:481.12:530.43:06-0.16:268:19Waning Crescent20Tue
21Wed8:451.09:291.13:360.43:48-0.16:268:19New Moon21Wed
22Thu9:271.010:091.14:170.44:27-0.16:268:19New Moon22Thu
23Fri10:081.010:481.14:560.35:06-0.16:268:19New Moon23Fri
24Sat10:491.011:271.15:350.35:43-0.16:278:19New Moon24Sat
25Sun11:301.06:130.36:200.06:278:20Waxing Crescent25Sun
26Mon12:051.112:121.06:500.36:580.06:278:20Waxing Crescent26Mon
27Tue12:431.112:551.07:300.27:400.16:288:20Waxing Crescent27Tue
28Wed1:211.11:411.08:110.28:250.26:288:20Waxing Crescent28Wed
29Thu2:011.12:311.08:580.19:170.26:288:20First Quarter29Thu
30Fri2:441.03:261.09:490.010:150.36:298:20First Quarter30Fri
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