Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Grand Isle, LA.
Next low tide (tomorrow) : 6:35 pm (-0.2 ft)
Next high tide (tomorrow) : in 9h 33m at 7:05 am (1.2 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:01 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - Jan 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:171.18:32-0.96:545:12Full Moon1Fri
2Sat11:150.99:26-0.86:545:13Waning Gibbous2Sat
3Sun10:15-0.66:545:14Waning Gibbous3Sun
4Mon12:170.710:55-0.36:545:15Waning Gibbous4Mon
5Tue1:230.46:110.111:05-0.16:545:15Third Quarter5Tue
6Wed4:150.37:430.16:545:16Third Quarter6Wed
7Thu4:160.52:32-0.26:555:17Third Quarter7Thu
8Fri4:470.73:29-0.46:555:18Third Quarter8Fri
9Sat5:340.84:18-0.66:555:18Waning Crescent9Sat
10Sun6:260.95:04-0.76:555:19Waning Crescent10Sun
11Mon7:160.95:48-0.86:555:20Waning Crescent11Mon
12Tue8:010.96:30-0.86:555:21Waning Crescent12Tue
13Wed8:410.97:11-0.76:555:22New Moon13Wed
14Thu9:180.87:48-0.76:545:22New Moon14Thu
15Fri9:520.78:23-0.66:545:23New Moon15Fri
16Sat10:230.68:52-0.56:545:24New Moon16Sat
17Sun10:480.59:14-0.46:545:25Waxing Crescent17Sun
18Mon10:370.39:21-0.36:545:26Waxing Crescent18Mon
19Tue9:460.28:33-0.26:545:27Waxing Crescent19Tue
20Wed3:210.27:33-0.16:535:28Waxing Crescent20Wed
21Thu3:210.35:28-0.16:535:28First Quarter21Thu
22Fri3:390.42:40-0.26:535:29First Quarter22Fri
23Sat4:080.62:57-0.46:525:30First Quarter23Sat
24Sun4:510.73:32-0.66:525:31First Quarter24Sun
25Mon5:450.84:13-0.76:525:32Waxing Gibbous25Mon
26Tue6:441.04:56-0.96:515:33Waxing Gibbous26Tue
27Wed7:421.05:43-1.06:515:33Waxing Gibbous27Wed
28Thu8:401.06:32-1.06:505:34Full Moon28Thu
29Fri9:400.97:26-0.96:505:35Full Moon29Fri
30Sat10:460.88:20-0.76:495:36Full Moon30Sat
31Sun9:14-0.56:495:37Full Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8761724)

Common Questions About Grand Isle, LA Tides

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What time does the tide turn (slack tide) in Grand Isle, LA today?

Slack tide in Grand Isle, LA is approximately 12:50 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 Grand Isle, LA?

Grand Isle, LA is currently in a transitional phase. Tonight's moon is 76% 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 Grand Isle, LA 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 Grand Isle, LA?

Tide predictions for Grand Isle, LA 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 Grand Isle, LA?

Tide data for Grand Isle, LA is sourced from NOAA Station #8761724. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8761724.

What is the moon phase in Grand Isle, LA tonight?

Tonight the moon over Grand Isle, LA is Waxing Gibbous (76% illuminated). This places Grand Isle, LA 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