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 : 6:02 pm (-0.1 ft)
Next high tide : in 6h 11m at 6:39 am (1.1 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 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:451.48:54-0.26:007:54New Moon1Wed
2Thu10:151.59:37-0.26:007:55New Moon2Thu
3Fri10:441.510:19-0.26:007:55New Moon3Fri
4Sat11:151.410:58-0.26:007:56Waxing Crescent4Sat
5Sun11:461.311:31-0.16:007:56Waxing Crescent5Sun
6Mon12:151.211:520.06:007:56Waxing Crescent6Mon
7Tue12:331.011:390.25:597:57First Quarter7Tue
8Wed12:150.811:090.45:597:57First Quarter8Wed
9Thu7:410.85:010.45:597:58First Quarter9Thu
10Fri7:070.95:150.25:597:58First Quarter10Fri
11Sat7:131.15:52-0.15:597:59Waxing Gibbous11Sat
12Sun7:381.36:35-0.35:597:59Waxing Gibbous12Sun
13Mon8:161.57:23-0.45:597:59Waxing Gibbous13Mon
14Tue9:001.58:14-0.45:598:00Full Moon14Tue
15Wed9:461.69:06-0.46:008:00Full Moon15Wed
16Thu10:331.59:57-0.36:008:00Full Moon16Thu
17Fri11:181.410:41-0.26:008:01Waning Gibbous17Fri
18Sat11:581.311:17-0.16:008:01Waning Gibbous18Sat
19Sun12:271.111:380.16:008:01Waning Gibbous19Sun
20Mon12:211.011:160.26:008:01Waning Gibbous20Mon
21Tue11:420.810:260.36:008:02Third Quarter21Tue
22Wed8:260.79:160.46:018:02Third Quarter22Wed
23Thu7:020.86:260.36:018:02Third Quarter23Thu
24Fri6:120.95:510.26:018:02Third Quarter24Fri
25Sat6:301.05:580.06:028:02Waning Crescent25Sat
26Sun7:021.26:21-0.16:028:03Waning Crescent26Sun
27Mon7:401.36:50-0.26:028:03Waning Crescent27Mon
28Tue8:191.37:24-0.36:028:03Waning Crescent28Tue
29Wed8:581.48:01-0.36:038:03New Moon29Wed
30Thu9:351.48:40-0.36:038:03New Moon30Thu
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 12:20 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