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 4h 17m 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 - Apr 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:540.78:06 AM0.75:220.66:420.16:487:18New Moon1Mon
2Tue9:340.99:19-0.16:477:18New Moon2Tue
3Wed10:421.110:54-0.26:467:19Waxing Crescent3Wed
4Thu11:481.26:457:20Waxing Crescent4Thu
5Fri12:531.212:01-0.26:437:20Waxing Crescent5Fri
6Sat1:531.21:04-0.26:427:21First Quarter6Sat
7Sun2:491.22:09-0.26:417:21First Quarter7Sun
8Mon3:461.13:15-0.16:407:22First Quarter8Mon
9Tue4:511.04:15-0.16:397:23First Quarter9Tue
10Wed6:181.05:030.06:387:23Waxing Gibbous10Wed
11Thu7:530.95:390.16:377:24Waxing Gibbous11Thu
12Fri9:210.86:020.26:367:24Waxing Gibbous12Fri
13Sat12:190.65:590.43:530.56:347:25Waxing Gibbous13Sat
14Sun10:460.64:450.55:220.46:337:26Full Moon14Sun
15Mon1:450.610:33 AM0.83:550.66:340.26:327:26Full Moon15Mon
16Tue10:280.97:490.16:317:27Full Moon16Tue
17Wed10:191.19:090.06:307:27Full Moon17Wed
18Thu10:351.210:15-0.16:297:28Waning Gibbous18Thu
19Fri11:131.311:14-0.26:287:28Waning Gibbous19Fri
20Sat12:041.46:277:29Waning Gibbous20Sat
21Sun1:041.412:12-0.36:267:30Waning Gibbous21Sun
22Mon2:061.41:14-0.36:257:30Third Quarter22Mon
23Tue3:081.42:20-0.36:247:31Third Quarter23Tue
24Wed4:211.23:28-0.26:237:32Third Quarter24Wed
25Thu6:551.04:310.06:227:32Waning Crescent25Thu
26Fri9:220.95:250.26:217:33Waning Crescent26Fri
27Sat10:520.611:580.86:060.53:440.56:207:33Waning Crescent27Sat
28Sun9:560.83:280.76:080.26:207:34Waning Crescent28Sun
29Mon9:181.07:290.06:197:35New Moon29Mon
30Tue9:201.28:38-0.16:187:35New Moon30Tue
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