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 13m 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 - Jan 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:391.05:57-0.86:545:12Waning Crescent1Sat
2Sun8:261.06:45-0.86:545:13New Moon2Sun
3Mon9:081.07:32-0.76:545:14New Moon3Mon
4Tue9:470.98:18-0.76:545:14New Moon4Tue
5Wed10:220.88:59-0.66:545:15New Moon5Wed
6Thu10:510.69:33-0.56:545:16Waxing Crescent6Thu
7Fri11:040.59:55-0.36:555:17Waxing Crescent7Fri
8Sat10:280.39:49-0.26:555:17Waxing Crescent8Sat
9Sun8:490.28:46-0.16:555:18Waxing Crescent9Sun
10Mon4:140.27:480.06:555:19First Quarter10Mon
11Tue4:040.45:12-0.16:555:20First Quarter11Tue
12Wed4:280.54:05-0.26:555:21First Quarter12Wed
13Thu5:050.64:01-0.46:555:21First Quarter13Thu
14Fri5:490.74:26-0.56:545:22Waxing Gibbous14Fri
15Sat6:350.84:57-0.76:545:23Waxing Gibbous15Sat
16Sun7:210.95:32-0.86:545:24Waxing Gibbous16Sun
17Mon8:070.96:11-0.86:545:25Waxing Gibbous17Mon
18Tue8:541.06:54-0.86:545:26Full Moon18Tue
19Wed9:430.97:40-0.86:545:26Full Moon19Wed
20Thu10:390.88:29-0.76:535:27Full Moon20Thu
21Fri11:450.69:17-0.66:535:28Waning Gibbous21Fri
22Sat9:59-0.46:535:29Waning Gibbous22Sat
23Sun1:010.33:110.010:18-0.16:450.06:525:30Waning Gibbous23Sun
24Mon2:420.12:550.26:520.06:525:31Waning Gibbous24Mon
25Tue3:090.412:52-0.26:525:32Third Quarter25Tue
26Wed3:420.62:08-0.56:515:32Third Quarter26Wed
27Thu4:340.73:13-0.66:515:33Third Quarter27Thu
28Fri5:370.84:11-0.86:505:34Waning Crescent28Fri
29Sat6:410.85:03-0.86:505:35Waning Crescent29Sat
30Sun7:370.85:51-0.86:495:36Waning Crescent30Sun
31Mon8:270.86:37-0.76:495:37Waning 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 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