Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Monday, June 8, 2026
The tide is currently rising in Grand Isle, LA.
Next low tide : 10:47 pm (0.4 ft)
Next high tide : in 6h 48m at 10:06 am (0.7 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:59 am
Moon phase : Third Quarter (47% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - May 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:571.29:160.06:177:36New Moon1Sun
2Mon10:271.310:04-0.16:167:36New Moon2Mon
3Tue11:031.410:50-0.16:167:37Waxing Crescent3Tue
4Wed11:451.411:35-0.16:157:37Waxing Crescent4Wed
5Thu12:311.36:147:38Waxing Crescent5Thu
6Fri1:171.312:20-0.16:137:39Waxing Crescent6Fri
7Sat1:591.31:050.06:127:39First Quarter7Sat
8Sun2:331.21:490.06:127:40First Quarter8Sun
9Mon3:001.12:300.16:117:41First Quarter9Mon
10Tue3:170.93:010.26:107:41First Quarter10Tue
11Wed11:420.78:290.73:020.46:040.76:107:42Waxing Gibbous11Wed
12Thu9:510.82:360.56:020.56:097:42Waxing Gibbous12Thu
13Fri9:250.96:270.26:087:43Waxing Gibbous13Fri
14Sat9:151.17:070.06:087:44Full Moon14Sat
15Sun9:101.38:01-0.26:077:44Full Moon15Sun
16Mon9:321.59:04-0.36:067:45Full Moon16Mon
17Tue10:131.610:09-0.46:067:46Full Moon17Tue
18Wed11:061.711:12-0.56:057:46Waning Gibbous18Wed
19Thu12:101.66:057:47Waning Gibbous19Thu
20Fri1:151.612:12-0.46:047:47Waning Gibbous20Fri
21Sat2:111.41:11-0.36:047:48Third Quarter21Sat
22Sun2:501.22:09-0.16:037:49Third Quarter22Sun
23Mon2:490.93:020.16:037:49Third Quarter23Mon
24Tue10:340.79:050.73:380.45:540.66:037:50Waning Crescent24Tue
25Wed9:260.812:540.66:110.46:027:50Waning Crescent25Wed
26Thu8:411.06:440.26:027:51Waning Crescent26Thu
27Fri8:341.17:190.06:027:51Waning Crescent27Fri
28Sat8:491.37:55-0.16:017:52New Moon28Sat
29Sun9:141.48:32-0.26:017:53New Moon29Sun
30Mon9:431.49:11-0.26:017:53New Moon30Mon
31Tue10:151.49:52-0.26:007:54New Moon31Tue
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 4:26 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 47% 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 (47% 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