29.2633’ N, 89.9567’ W

Grand Isle, LA

77°
H -°
L 76°
NNE
5mph
High tide
8:43 am

Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Monday, August 24, 2026
The tide is currently rising in Grand Isle, LA.
Next low tide (tomorrow) : 7:36 pm (0.1 ft)
Next high tide (tomorrow) : in 12h 11m at 8:43 am (1.5 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waxing Gibbous (88% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - May 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:521.412:04-0.26:177:35Waning Gibbous1Wed
2Thu1:471.31:01-0.26:167:36Third Quarter2Thu
3Fri2:341.21:58-0.16:167:37Third Quarter3Fri
4Sat3:121.12:540.16:157:37Third Quarter4Sat
5Sun3:400.93:440.26:147:38Third Quarter5Sun
6Mon3:460.84:170.36:137:39Waning Crescent6Mon
7Tue11:260.710:100.73:340.56:070.66:127:39Waning Crescent7Tue
8Wed10:170.82:370.66:230.56:127:40Waning Crescent8Wed
9Thu9:330.96:520.36:117:40Waning Crescent9Thu
10Fri9:341.07:270.26:107:41New Moon10Fri
11Sat9:451.18:070.16:107:42New Moon11Sat
12Sun9:571.38:510.06:097:42New Moon12Sun
13Mon10:131.39:39-0.16:087:43New Moon13Mon
14Tue10:381.410:28-0.26:087:44Waxing Crescent14Tue
15Wed11:151.511:16-0.26:077:44Waxing Crescent15Wed
16Thu12:001.56:077:45Waxing Crescent16Thu
17Fri12:511.412:03-0.26:067:45Waxing Crescent17Fri
18Sat1:401.412:52-0.26:057:46First Quarter18Sat
19Sun2:241.21:42-0.16:057:47First Quarter19Sun
20Mon2:591.02:310.16:047:47First Quarter20Mon
21Tue3:040.83:010.35:420.76:047:48Waxing Gibbous21Tue
22Wed9:430.82:070.55:490.46:037:48Waxing Gibbous22Wed
23Thu9:080.96:260.26:037:49Waxing Gibbous23Thu
24Fri8:571.17:13-0.16:037:50Waxing Gibbous24Fri
25Sat9:031.38:06-0.26:027:50Full Moon25Sat
26Sun9:311.59:03-0.36:027:51Full Moon26Sun
27Mon10:101.510:00-0.36:027:51Full Moon27Mon
28Tue10:561.510:53-0.36:017:52Waning Gibbous28Tue
29Wed11:451.511:42-0.26:017:52Waning Gibbous29Wed
30Thu12:331.46:017:53Waning Gibbous30Thu
31Fri1:131.312:25-0.16:007:54Waning Gibbous31Fri
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 88% 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 Waxing Gibbous (88% 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