Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Saturday, June 6, 2026
The tide is currently rising in Grand Isle, LA.
Next low tide (tomorrow) : 12:20 am (0.1 ft)
Next high tide : in 3h 14m at 1:13 pm (1.1 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 6:00 am
Moon phase : Third Quarter (67% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - May 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:020.79:110.63:130.44:500.66:177:35Waning Crescent1Sat
2Sun9:010.71:550.65:320.46:177:36Waning Crescent2Sun
3Mon8:240.96:120.26:167:37Waning Crescent3Mon
4Tue8:291.16:550.06:157:37New Moon4Tue
5Wed8:541.37:43-0.16:147:38New Moon5Wed
6Thu9:311.48:37-0.26:137:39New Moon6Thu
7Fri10:171.59:37-0.36:137:39New Moon7Fri
8Sat11:081.610:42-0.36:127:40Waxing Crescent8Sat
9Sun12:031.611:47-0.36:117:40Waxing Crescent9Sun
10Mon12:581.56:107:41Waxing Crescent10Mon
11Tue1:521.412:48-0.26:107:42First Quarter11Tue
12Wed2:411.21:42-0.16:097:42First Quarter12Wed
13Thu3:160.92:250.16:087:43First Quarter13Thu
14Fri11:380.72:440.36:087:44First Quarter14Fri
15Sat9:060.81:530.65:380.46:077:44Waxing Gibbous15Sat
16Sun8:090.96:150.16:077:45Waxing Gibbous16Sun
17Mon8:061.16:560.06:067:45Waxing Gibbous17Mon
18Tue8:281.37:37-0.26:057:46Full Moon18Tue
19Wed9:011.48:20-0.26:057:47Full Moon19Wed
20Thu9:381.49:03-0.26:047:47Full Moon20Thu
21Fri10:191.49:49-0.26:047:48Full Moon21Fri
22Sat11:001.410:35-0.26:047:48Waning Gibbous22Sat
23Sun11:411.411:19-0.16:037:49Waning Gibbous23Sun
24Mon12:191.311:59-0.16:037:50Waning Gibbous24Mon
25Tue12:521.26:027:50Waning Gibbous25Tue
26Wed1:201.112:310.06:027:51Third Quarter26Wed
27Thu1:331.012:510.16:027:51Third Quarter27Thu
28Fri12:490.812:520.36:017:52Third Quarter28Fri
29Sat9:220.712:160.49:290.56:017:52Third Quarter29Sat
30Sun7:410.85:430.36:017:53Waning Crescent30Sun
31Mon7:151.05:470.16:017:54Waning Crescent31Mon
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 6:46 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 67% 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 Third Quarter (67% 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