Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in Grand Isle, LA.
Next low tide : in 3h 14m at 6:02 pm (-0.1 ft)
Next high tide (tomorrow) : 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 - Jun 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:391.26:007:54Waning Gibbous1Tue
2Wed12:541.112:010.111:590.26:007:55Waning Gibbous2Wed
3Thu12:420.911:380.36:007:55Third Quarter3Thu
4Fri10:020.811:100.46:007:56Third Quarter4Fri
5Sat8:480.87:290.46:007:56Third Quarter5Sat
6Sun7:150.95:580.35:597:57Third Quarter6Sun
7Mon7:171.06:050.15:597:57Waning Crescent7Mon
8Tue7:391.26:29-0.15:597:57Waning Crescent8Tue
9Wed8:071.37:01-0.25:597:58Waning Crescent9Wed
10Thu8:391.47:40-0.35:597:58Waning Crescent10Thu
11Fri9:141.58:25-0.45:597:59New Moon11Fri
12Sat9:521.69:14-0.45:597:59New Moon12Sat
13Sun10:351.610:05-0.45:597:59New Moon13Sun
14Mon11:221.510:53-0.35:598:00Waxing Crescent14Mon
15Tue12:121.411:35-0.26:008:00Waxing Crescent15Tue
16Wed12:571.26:008:00Waxing Crescent16Wed
17Thu12:420.912:070.011:420.36:008:01First Quarter17Thu
18Fri9:040.710:190.56:008:01First Quarter18Fri
19Sat6:440.84:320.36:008:01First Quarter19Sat
20Sun6:241.05:090.06:008:02First Quarter20Sun
21Mon6:391.25:51-0.26:018:02Waxing Gibbous21Mon
22Tue7:141.36:36-0.36:018:02Waxing Gibbous22Tue
23Wed7:581.47:21-0.46:018:02Waxing Gibbous23Wed
24Thu8:431.58:06-0.46:018:02Full Moon24Thu
25Fri9:261.58:50-0.36:028:02Full Moon25Fri
26Sat10:071.49:32-0.36:028:03Full Moon26Sat
27Sun10:451.410:08-0.26:028:03Full Moon27Sun
28Mon11:191.310:36-0.16:038:03Waning Gibbous28Mon
29Tue11:471.210:540.06:038:03Waning Gibbous29Tue
30Wed11:591.010:490.16:038:03Waning Gibbous30Wed
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 12:33 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 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