Tides Today & Tomorrow in Sewall Point, St. Lucie River, FL

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Sewall Point, St. Lucie River, FL.
Next low tide (tomorrow) : 8:55 am (0.1 ft)
Next high tide (tomorrow) : in 4h 23m at 2:31 am (1.3 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:53 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8722371
Common Questions About Tides

Sewall Point, St. Lucie River, FL Tides - Mar 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:451.63:411.310:060.410:080.06:446:21First Quarter1Sun
2Mon4:461.64:421.311:060.411:070.16:436:22Waxing Gibbous2Mon
3Tue5:431.65:401.312:020.46:426:22Waxing Gibbous3Tue
4Wed6:331.66:341.412:030.112:510.36:416:23Waxing Gibbous4Wed
5Thu7:171.57:241.412:550.11:350.36:406:23Waxing Gibbous5Thu
6Fri7:561.58:091.51:430.12:150.26:396:24Full Moon6Fri
7Sat8:341.58:531.52:270.12:530.26:386:25Full Moon7Sat
8Sun9:101.59:351.63:090.23:290.16:376:25Full Moon8Sun
9Mon9:461.510:161.63:510.24:040.16:366:26Full Moon9Mon
10Tue10:221.410:581.64:320.34:400.16:356:26Waning Gibbous10Tue
11Wed10:591.411:401.65:130.35:160.16:346:27Waning Gibbous11Wed
12Thu11:371.35:560.45:530.16:336:27Waning Gibbous12Thu
13Fri12:251.612:161.36:410.46:340.16:326:28Waning Gibbous13Fri
14Sat1:131.51:001.27:310.57:210.16:316:28Third Quarter14Sat
15Sun2:051.51:511.28:240.58:140.16:306:29Third Quarter15Sun
16Mon3:001.52:511.29:210.59:140.16:286:29Third Quarter16Mon
17Tue3:561.53:541.210:180.510:160.16:276:30Third Quarter17Tue
18Wed4:521.64:571.311:140.411:180.06:266:31Waning Crescent18Wed
19Thu5:451.65:571.412:070.36:256:31Waning Crescent19Thu
20Fri6:361.66:541.612:180.012:570.26:246:32Waning Crescent20Fri
21Sat7:251.77:491.71:160.01:450.16:236:32New Moon21Sat
22Sun8:131.78:431.82:130.02:33-0.16:226:33New Moon22Sun
23Mon9:011.69:361.93:070.03:21-0.16:216:33New Moon23Mon
24Tue9:491.610:301.94:020.04:09-0.26:206:34New Moon24Tue
25Wed10:381.511:241.94:560.14:59-0.26:186:34Waxing Crescent25Wed
26Thu11:291.55:500.15:51-0.26:176:35Waxing Crescent26Thu
27Fri12:201.812:221.46:460.26:46-0.16:166:35Waxing Crescent27Fri
28Sat1:171.71:191.37:430.37:430.06:156:36First Quarter28Sat
29Sun2:171.72:191.38:420.48:420.16:146:36First Quarter29Sun
30Mon3:161.63:211.39:410.49:430.16:136:37First Quarter30Mon
31Tue4:141.54:231.310:370.410:430.26:126:37First Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8722371)

Common Questions About Sewall Point, St. Lucie River, FL Tides

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What time does the tide turn (slack tide) in Sewall Point, St. Lucie River, FL today?

Slack tide in Sewall Point, St. Lucie River, FL is approximately 5:43 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 Sewall Point, St. Lucie River, FL?

Sewall Point, St. Lucie River, 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 Sewall Point, St. Lucie River, 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 Sewall Point, St. Lucie River, FL?

Tide predictions for Sewall Point, St. Lucie River, 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 Sewall Point, St. Lucie River, FL?

Tide data for Sewall Point, St. Lucie River, FL is sourced from NOAA Station #8722371. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8722371.

What is the moon phase in Sewall Point, St. Lucie River, FL tonight?

Tonight the moon over Sewall Point, St. Lucie River, FL is First Quarter (36% illuminated). This places Sewall Point, St. Lucie River, 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