Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Grand Isle, LA.
Next low tide (tomorrow) : 4:26 pm (0.1 ft)
Next high tide (tomorrow) : in 10h 20m at 5:21 am (1.0 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:06 am
Moon phase : Third Quarter (51% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - Jun 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:491.611:41-0.36:007:55Waxing Crescent1Tue
2Wed12:421.56:007:55Waxing Crescent2Wed
3Thu1:261.312:29-0.26:007:56Waxing Crescent3Thu
4Fri1:511.11:070.06:007:56First Quarter4Fri
5Sat1:460.91:280.26:007:57First Quarter5Sat
6Sun10:390.812:440.311:590.56:007:57First Quarter6Sun
7Mon9:230.87:020.45:597:58First Quarter7Mon
8Tue8:040.96:250.25:597:58Waxing Gibbous8Tue
9Wed7:471.06:360.15:597:58Waxing Gibbous9Wed
10Thu8:031.27:00-0.15:597:59Waxing Gibbous10Thu
11Fri8:281.37:30-0.25:597:59Waxing Gibbous11Fri
12Sat8:571.48:06-0.36:008:00Full Moon12Sat
13Sun9:271.58:46-0.36:008:00Full Moon13Sun
14Mon9:591.59:30-0.46:008:00Full Moon14Mon
15Tue10:331.510:14-0.46:008:01Full Moon15Tue
16Wed11:091.510:56-0.46:008:01Waning Gibbous16Wed
17Thu11:471.411:35-0.36:008:01Waning Gibbous17Thu
18Fri12:241.36:008:01Waning Gibbous18Fri
19Sat12:551.112:07-0.16:008:02Third Quarter19Sat
20Sun1:070.912:230.111:580.36:018:02Third Quarter20Sun
21Mon9:100.710:590.56:018:02Third Quarter21Mon
22Tue7:250.85:100.26:018:02Third Quarter22Tue
23Wed7:071.05:39-0.16:018:02Waning Crescent23Wed
24Thu7:171.36:20-0.36:028:03Waning Crescent24Thu
25Fri7:491.57:07-0.56:028:03Waning Crescent25Fri
26Sat8:331.67:59-0.66:028:03New Moon26Sat
27Sun9:231.68:54-0.66:038:03New Moon27Sun
28Mon10:141.69:49-0.56:038:03New Moon28Mon
29Tue11:051.510:39-0.46:038:03New Moon29Tue
30Wed11:531.411:21-0.26:048:03Waxing Crescent30Wed
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 10:53 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 neap phase. Tonight's moon is 51% 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 (51% 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