Tides Today & Tomorrow in Sebastian, FL

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Sebastian, FL.
Next low tide : in 2h 57m at 9:40 am (0.1 ft)
Next high tide : 3:10 pm (0.4 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 6:53 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8722029
Common Questions About Tides

Sebastian, FL Tides - Sep 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:330.510:560.54:580.05:210.07:007:43Full Moon1Tue
2Wed11:220.511:410.55:44-0.16:080.07:007:41Full Moon2Wed
3Thu12:110.56:30-0.16:570.07:017:40Waning Gibbous3Thu
4Fri12:260.51:020.57:19-0.17:470.17:017:39Waning Gibbous4Fri
5Sat1:140.51:540.58:10-0.18:400.27:027:38Waning Gibbous5Sat
6Sun2:050.42:500.49:060.09:380.27:027:37Third Quarter6Sun
7Mon3:010.43:510.410:070.110:420.37:037:36Third Quarter7Mon
8Tue4:020.44:560.411:130.111:500.47:037:35Third Quarter8Tue
9Wed5:090.46:040.412:220.27:047:33Third Quarter9Wed
10Thu6:190.47:080.412:580.41:280.27:047:32Waning Crescent10Thu
11Fri7:240.48:050.42:010.32:260.27:057:31Waning Crescent11Fri
12Sat8:220.48:540.42:560.33:190.27:057:30Waning Crescent12Sat
13Sun9:120.49:370.43:440.24:050.27:067:29Waning Crescent13Sun
14Mon9:560.410:150.44:270.24:470.27:067:28New Moon14Mon
15Tue10:360.410:500.45:060.25:260.27:077:26New Moon15Tue
16Wed11:130.411:240.45:430.26:030.27:077:25New Moon16Wed
17Thu11:490.411:580.46:190.26:390.37:077:24New Moon17Thu
18Fri12:250.46:530.27:140.37:087:23Waxing Crescent18Fri
19Sat12:320.41:020.47:270.27:490.47:087:22Waxing Crescent19Sat
20Sun1:070.41:420.48:020.38:250.47:097:21Waxing Crescent20Sun
21Mon1:450.42:240.48:410.39:050.57:097:19Waxing Crescent21Mon
22Tue2:260.43:120.49:250.49:540.57:107:18First Quarter22Tue
23Wed3:140.44:080.410:190.410:550.67:107:17First Quarter23Wed
24Thu4:130.45:080.411:220.47:117:16First Quarter24Thu
25Fri5:190.46:100.412:020.512:290.47:117:15First Quarter25Fri
26Sat6:260.47:090.41:060.51:310.37:127:14Waxing Gibbous26Sat
27Sun6:290.47:020.41:030.41:280.36:126:12Waxing Gibbous27Sun
28Mon7:270.47:520.51:540.22:200.26:136:11Waxing Gibbous28Mon
29Tue8:200.58:390.52:430.13:100.16:136:10Full Moon29Tue
30Wed9:110.59:270.53:310.03:590.16:146:09Full Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8722029)

Common Questions About Sebastian, FL Tides

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What time does the tide turn (slack tide) in Sebastian, FL today?

Slack tide in Sebastian, FL is approximately 12:25 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 Sebastian, FL?

Sebastian, 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 Sebastian, 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 Sebastian, FL?

Tide predictions for Sebastian, 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 Sebastian, FL?

Tide data for Sebastian, FL is sourced from NOAA Station #8722029. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8722029.

What is the moon phase in Sebastian, FL tonight?

Tonight the moon over Sebastian, FL is First Quarter (36% illuminated). This places Sebastian, 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