29.2633’ N, 89.9567’ W

Grand Isle, LA

83°
H -°
L 80°
ENE
7mph
High tide
1:54 am

Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Saturday, August 29, 2026
The tide is currently rising in Grand Isle, LA.
Next low tide (tomorrow) : 6:26 am (0.7 ft)
Next high tide (tomorrow) : in 5h 37m at 1:54 am (0.8 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:36 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - May 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:140.79:270.72:560.45:040.66:177:36Waxing Gibbous1Sat
2Sun9:150.81:530.65:380.46:167:36Waxing Gibbous2Sun
3Mon9:001.06:240.16:157:37Waxing Gibbous3Mon
4Tue9:021.27:16-0.16:157:37Full Moon4Tue
5Wed9:191.38:15-0.26:147:38Full Moon5Wed
6Thu9:531.49:17-0.26:137:39Full Moon6Thu
7Fri10:371.510:17-0.26:127:39Full Moon7Fri
8Sat11:271.511:13-0.26:127:40Waning Gibbous8Sat
9Sun12:181.46:117:41Waning Gibbous9Sun
10Mon1:051.312:03-0.16:107:41Waning Gibbous10Mon
11Tue1:401.212:460.06:097:42Third Quarter11Tue
12Wed1:551.01:200.26:097:42Third Quarter12Wed
13Thu1:450.91:290.36:087:43Third Quarter13Thu
14Fri10:120.812:350.46:087:44Third Quarter14Fri
15Sat9:310.812:150.56:270.56:077:44Waning Crescent15Sat
16Sun8:210.96:190.36:067:45Waning Crescent16Sun
17Mon8:161.06:390.26:067:46Waning Crescent17Mon
18Tue8:341.17:060.16:057:46Waning Crescent18Tue
19Wed8:591.37:400.06:057:47New Moon19Wed
20Thu9:261.38:18-0.16:047:47New Moon20Thu
21Fri9:531.49:01-0.26:047:48New Moon21Fri
22Sat10:201.49:46-0.26:037:49New Moon22Sat
23Sun10:501.410:30-0.26:037:49Waxing Crescent23Sun
24Mon11:241.411:12-0.26:037:50Waxing Crescent24Mon
25Tue12:011.411:50-0.16:027:50Waxing Crescent25Tue
26Wed12:361.26:027:51Waxing Crescent26Wed
27Thu1:011.112:190.06:017:51First Quarter27Thu
28Fri1:010.812:180.211:530.46:017:52First Quarter28Fri
29Sat8:360.85:120.56:017:53First Quarter29Sat
30Sun7:470.95:270.26:017:53Waxing Gibbous30Sun
31Mon7:451.16:030.06:007:54Waxing Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8761724)

Common Questions About Grand Isle, LA Tides

Collapse All
Is this week a spring tide or neap tide in Grand Isle, LA?

Grand Isle, LA is currently in a spring phase. Tonight's moon is 97% 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 maximum.

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 Full Moon (97% illuminated). This places Grand Isle, LA in a spring tide cycle, so tidal ranges are near their weekly maximum 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