29.2633’ N, 89.9567’ W

Grand Isle, LA

72°
H -°
L 69°
ENE
8mph
Low tide
10:20 am

Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Wednesday, October 28, 2026
The tide is currently falling in Grand Isle, LA.
Next low tide : in 10h 51m at 10:20 am (-0.1 ft)
Next high tide : 11:23 pm (1.8 ft)
Sunset today : 6:18 pm
Sunrise tomorrow : 7:09 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - Apr 1884

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:321.112:08-0.25:486:18First Quarter1Tue
2Wed2:331.11:18-0.25:476:19First Quarter2Wed
3Thu3:481.02:29-0.15:466:19First Quarter3Thu
4Fri5:410.93:340.05:456:20Waxing Gibbous4Fri
5Sat7:380.84:280.15:436:20Waxing Gibbous5Sat
6Sun9:210.75:100.35:426:21Waxing Gibbous6Sun
7Mon10:200.510:580.65:370.42:500.45:416:21Waxing Gibbous7Mon
8Tue9:410.62:470.54:200.35:406:22Full Moon8Tue
9Wed12:390.69:22 AM0.72:390.65:260.25:396:23Full Moon9Wed
10Thu9:260.96:330.25:386:23Full Moon10Thu
11Fri9:430.98:010.15:376:24Full Moon11Fri
12Sat10:101.09:070.15:366:24Waning Gibbous12Sat
13Sun10:431.09:580.15:346:25Waning Gibbous13Sun
14Mon11:221.110:440.05:336:25Waning Gibbous14Mon
15Tue12:021.111:280.15:326:26Waning Gibbous15Tue
16Wed12:401.15:316:27Third Quarter16Wed
17Thu1:151.012:130.15:306:27Third Quarter17Thu
18Fri1:481.01:000.15:296:28Third Quarter18Fri
19Sat2:220.91:490.25:286:28Third Quarter19Sat
20Sun6:100.82:310.35:276:29Waning Crescent20Sun
21Mon10:140.78:240.72:420.41:450.65:266:30Waning Crescent21Mon
22Tue9:090.710:460.72:190.53:580.45:256:30Waning Crescent22Tue
23Wed9:010.82:060.64:570.35:246:31Waning Crescent23Wed
24Thu9:061.06:000.15:236:31New Moon24Thu
25Fri9:101.17:160.05:226:32New Moon25Fri
26Sat9:191.38:32-0.15:216:33New Moon26Sat
27Sun9:551.39:40-0.25:206:33Waxing Crescent27Sun
28Mon10:511.410:41-0.25:196:34Waxing Crescent28Mon
29Tue11:541.311:39-0.15:186:35Waxing Crescent29Tue
30Wed12:481.25:186:35First Quarter30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8761724)

Common Questions About Grand Isle, LA Tides

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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