Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Sunday, June 7, 2026
The tide is currently rising in Grand Isle, LA.
Next low tide (tomorrow) : 12:07 am (0.3 ft)
Next high tide : in 4h 03m at 1:17 pm (0.9 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:59 am
Moon phase : Third Quarter (57% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - Sep 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:221.210:510.76:377:22Waning Gibbous1Fri
2Sat2:030.83:211.06:250.66:560.96:377:21Waning Gibbous2Sat
3Sun1:331.010:400.56:387:19Waning Gibbous3Sun
4Mon1:331.212:220.36:387:18Waning Gibbous4Mon
5Tue2:051.41:390.26:397:17Third Quarter5Tue
6Wed2:511.52:550.16:407:16Third Quarter6Wed
7Thu3:431.64:060.16:407:15Third Quarter7Thu
8Fri4:421.65:070.16:417:13Third Quarter8Fri
9Sat5:511.65:580.16:417:12Waning Crescent9Sat
10Sun7:041.56:410.26:427:11Waning Crescent10Sun
11Mon8:091.57:160.36:427:10Waning Crescent11Mon
12Tue9:051.47:450.46:437:09Waning Crescent12Tue
13Wed9:571.38:060.56:437:07New Moon13Wed
14Thu10:531.28:110.76:447:06New Moon14Thu
15Fri12:011.16:450.86:447:05New Moon15Fri
16Sat1:040.91:291.05:550.85:590.96:457:04New Moon16Sat
17Sun12:541.17:380.76:457:03Waxing Crescent17Sun
18Mon1:001.210:440.66:467:01Waxing Crescent18Mon
19Tue1:091.311:430.56:467:00Waxing Crescent19Tue
20Wed1:261.512:380.36:476:59Waxing Crescent20Wed
21Thu1:591.61:390.26:476:58First Quarter21Thu
22Fri2:461.72:480.16:486:56First Quarter22Fri
23Sat3:441.83:560.16:486:55First Quarter23Sat
24Sun4:571.84:580.16:496:54Waxing Gibbous24Sun
25Mon6:331.75:540.16:496:53Waxing Gibbous25Mon
26Tue8:101.66:480.36:506:52Waxing Gibbous26Tue
27Wed9:431.57:410.56:506:50Waxing Gibbous27Wed
28Thu11:231.48:380.86:516:49Full Moon28Thu
29Fri12:170.91:241.24:390.76:516:48Full Moon29Fri
30Sat9:281.36:290.66:526:47Full Moon30Sat
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 6:42 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 neap phase. Tonight's moon is 57% 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 near their weekly minimum.

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 Third Quarter (57% illuminated). This places Grand Isle, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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