Tides Today & Tomorrow in St. Lucie, FL

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in St. Lucie, FL.
Next low tide : in 1h 56m at 10:26 am (0.0 ft)
Next high tide : 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 - Feb 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:141.11:251.18:05-0.18:35-0.57:076:02First Quarter1Mon
2Tue2:131.12:211.09:060.19:36-0.47:076:02First Quarter2Tue
3Wed3:171.03:230.910:110.210:41-0.37:066:03First Quarter3Wed
4Thu4:251.04:310.911:170.311:45-0.27:066:04Waxing Gibbous4Thu
5Fri5:331.05:370.912:210.37:056:05Waxing Gibbous5Fri
6Sat6:341.06:370.912:46-0.21:180.27:046:05Waxing Gibbous6Sat
7Sun7:251.07:291.01:40-0.22:100.17:046:06Waxing Gibbous7Sun
8Mon8:091.08:141.02:28-0.32:550.07:036:07Full Moon8Mon
9Tue8:471.18:551.03:11-0.33:360.07:036:08Full Moon9Tue
10Wed9:221.19:331.03:51-0.34:14-0.17:026:08Full Moon10Wed
11Thu9:551.110:101.04:28-0.34:50-0.27:016:09Full Moon11Thu
12Fri10:281.110:461.05:04-0.25:23-0.27:006:10Waning Gibbous12Fri
13Sat11:001.011:221.05:38-0.15:56-0.27:006:11Waning Gibbous13Sat
14Sun11:321.06:110.06:29-0.16:596:11Waning Gibbous14Sun
15Mon12:001.012:050.96:450.17:04-0.16:586:12Waning Gibbous15Mon
16Tue12:400.912:410.97:230.27:430.06:576:13Third Quarter16Tue
17Wed1:250.91:220.98:070.38:320.06:566:13Third Quarter17Wed
18Thu2:180.92:120.89:020.49:320.06:566:14Third Quarter18Thu
19Fri3:210.93:160.810:080.510:400.06:556:15Third Quarter19Fri
20Sat4:310.94:300.911:180.411:47-0.16:546:15Waning Crescent20Sat
21Sun5:380.95:410.912:240.36:536:16Waning Crescent21Sun
22Mon6:371.06:451.012:49-0.31:220.16:526:17Waning Crescent22Mon
23Tue7:291.17:431.11:45-0.42:15-0.26:516:17Waning Crescent23Tue
24Wed8:181.28:361.22:38-0.63:05-0.46:506:18New Moon24Wed
25Thu9:041.39:271.33:29-0.63:54-0.66:496:19New Moon25Thu
26Fri9:491.310:171.34:18-0.74:42-0.86:486:19New Moon26Fri
27Sat10:351.311:071.35:07-0.65:30-0.86:476:20Waxing Crescent27Sat
28Sun11:211.211:581.35:57-0.56:20-0.76:466:21Waxing Crescent28Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8722207)

Common Questions About St. Lucie, FL Tides

Show All
What time does the tide turn (slack tide) in St. Lucie, FL today?

Slack tide in St. Lucie, FL is approximately 1:09 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