Tides Today & Tomorrow in St. Lucie, FL

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in St. Lucie, FL.
Next low tide : in 2h 32m at 8:27 pm (0.4 ft)
Next high tide (tomorrow) : 1:40 am (1.2 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 - Sep 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:281.14:251.110:510.511:260.96:597:42Third Quarter1Sat
2Sun4:291.15:281.111:540.67:007:41Third Quarter2Sun
3Mon5:321.16:281.112:280.912:520.67:007:40Waning Crescent3Mon
4Tue6:321.17:191.21:240.91:450.67:017:39Waning Crescent4Tue
5Wed7:251.18:021.22:140.82:310.57:017:38Waning Crescent5Wed
6Thu8:121.28:411.32:570.73:130.57:027:37Waning Crescent6Thu
7Fri8:541.39:181.33:360.63:520.47:027:36New Moon7Fri
8Sat9:351.39:531.34:120.54:280.47:037:35New Moon8Sat
9Sun10:131.310:281.34:450.45:030.47:037:33New Moon9Sun
10Mon10:521.411:031.35:180.35:370.57:047:32New Moon10Mon
11Tue11:311.411:391.35:520.36:130.57:047:31Waxing Crescent11Tue
12Wed12:111.46:270.36:500.67:047:30Waxing Crescent12Wed
13Thu12:151.312:551.37:070.37:330.77:057:29Waxing Crescent13Thu
14Fri12:561.21:431.37:520.38:220.87:057:28Waxing Crescent14Fri
15Sat1:421.22:401.38:470.49:210.97:067:26First Quarter15Sat
16Sun2:401.23:441.29:510.510:300.97:067:25First Quarter16Sun
17Mon3:491.24:531.311:030.511:430.97:077:24First Quarter17Mon
18Tue5:031.26:001.312:150.47:077:23Waxing Gibbous18Tue
19Wed6:151.37:001.412:510.71:190.37:087:22Waxing Gibbous19Wed
20Thu7:201.47:541.51:510.52:180.27:087:21Waxing Gibbous20Thu
21Fri8:171.58:431.52:450.33:110.17:097:19Full Moon21Fri
22Sat9:101.69:291.63:350.14:010.17:097:18Full Moon22Sat
23Sun9:591.610:141.64:23-0.14:490.17:097:17Full Moon23Sun
24Mon10:471.610:581.55:09-0.15:360.27:107:16Full Moon24Mon
25Tue11:331.611:421.55:55-0.16:220.47:107:15Waning Gibbous25Tue
26Wed12:191.56:410.17:090.67:117:14Waning Gibbous26Wed
27Thu12:261.41:051.47:280.37:570.77:117:13Waning Gibbous27Thu
28Fri1:111.31:541.38:180.58:490.97:127:11Third Quarter28Fri
29Sat1:591.22:471.29:130.69:481.17:127:10Third Quarter29Sat
30Sun1:521.22:441.29:140.89:521.16:136:09Third Quarter30Sun
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 11:03 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