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 10h 21m 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 - Dec 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:401.04:280.16:365:01Waning Crescent1Wed
2Thu7:031.25:08-0.26:375:01Waning Crescent2Thu
3Fri7:381.35:54-0.46:385:01Waning Crescent3Fri
4Sat8:191.46:43-0.56:385:01New Moon4Sat
5Sun9:031.47:36-0.56:395:01New Moon5Sun
6Mon9:471.48:30-0.56:405:01New Moon6Mon
7Tue10:291.39:21-0.56:415:01Waxing Crescent7Tue
8Wed11:071.110:06-0.46:415:01Waxing Crescent8Wed
9Thu11:361.010:43-0.36:425:01Waxing Crescent9Thu
10Fri11:470.811:08-0.16:435:02Waxing Crescent10Fri
11Sat11:270.711:100.06:435:02First Quarter11Sat
12Sun8:430.510:300.16:445:02First Quarter12Sun
13Mon7:320.59:530.26:455:02First Quarter13Mon
14Tue5:580.65:510.16:455:03First Quarter14Tue
15Wed6:020.84:500.06:465:03Waxing Gibbous15Wed
16Thu6:280.94:57-0.26:475:03Waxing Gibbous16Thu
17Fri7:011.05:21-0.36:475:04Waxing Gibbous17Fri
18Sat7:361.15:52-0.56:485:04Waxing Gibbous18Sat
19Sun8:131.26:29-0.66:485:05Full Moon19Sun
20Mon8:501.27:11-0.66:495:05Full Moon20Mon
21Tue9:291.27:58-0.76:495:06Full Moon21Tue
22Wed10:101.18:46-0.76:505:06Full Moon22Wed
23Thu10:531.09:33-0.66:505:07Waning Gibbous23Thu
24Fri11:330.810:17-0.56:515:07Waning Gibbous24Fri
25Sat11:260.610:52-0.36:515:08Waning Gibbous25Sat
26Sun10:290.310:52-0.16:525:08Third Quarter26Sun
27Mon5:140.49:060.16:525:09Third Quarter27Mon
28Tue4:570.62:550.06:525:10Third Quarter28Tue
29Wed5:160.83:36-0.36:535:10Third Quarter29Wed
30Thu5:550.94:21-0.66:535:11Waning Crescent30Thu
31Fri6:511.05:08-0.76:535:12Waning Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8761724)

Common Questions About Grand Isle, LA Tides

Show All
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