29.2633’ N, 89.9567’ W

Grand Isle, LA

86°
H -°
L 83°
WSW
6mph
High tide
7:51 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 : 7:05 pm (0.1 ft)
Next high tide : in 7h 46m at 7:51 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 - Mar 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:470.94:28-0.56:245:59Waxing Gibbous1Mon
2Tue6:510.95:09-0.56:236:00Waxing Gibbous2Tue
3Wed7:470.95:47-0.56:226:00Waxing Gibbous3Wed
4Thu8:380.96:23-0.46:216:01Waxing Gibbous4Thu
5Fri9:330.86:59-0.36:206:02Full Moon5Fri
6Sat10:380.77:37-0.26:186:02Full Moon6Sat
7Sun8:180.06:176:03Full Moon7Sun
8Mon12:000.512:350.39:020.25:210.16:166:04Waning Gibbous8Mon
9Tue1:460.412:220.45:150.37:410.06:156:04Waning Gibbous9Tue
10Wed11:570.610:51-0.26:146:05Waning Gibbous10Wed
11Thu12:180.86:136:06Waning Gibbous11Thu
12Fri1:131.012:07-0.46:126:06Third Quarter12Fri
13Sat2:171.11:21-0.56:116:07Third Quarter13Sat
14Sun3:331.12:35-0.66:096:07Third Quarter14Sun
15Mon5:071.13:44-0.66:086:08Waning Crescent15Mon
16Tue6:401.14:45-0.56:076:09Waning Crescent16Tue
17Wed8:001.05:40-0.46:066:09Waning Crescent17Wed
18Thu9:150.96:31-0.36:056:10Waning Crescent18Thu
19Fri10:310.87:190.06:036:10New Moon19Fri
20Sat12:090.38:060.23:270.26:026:11New Moon20Sat
21Sun12:010.610:55 AM0.48:540.44:590.16:016:12New Moon21Sun
22Mon2:030.59:13 AM0.64:200.56:330.16:006:12New Moon22Mon
23Tue10:130.79:280.05:596:13Waxing Crescent23Tue
24Wed11:020.910:37-0.15:586:13Waxing Crescent24Wed
25Thu11:510.911:33-0.15:566:14Waxing Crescent25Thu
26Fri12:401.05:556:14Waxing Crescent26Fri
27Sat1:311.012:32-0.25:546:15First Quarter27Sat
28Sun2:241.11:36-0.25:536:16First Quarter28Sun
29Mon3:251.02:39-0.25:526:16First Quarter29Mon
30Tue4:411.03:32-0.25:506:17First Quarter30Tue
31Wed6:071.04:17-0.15:496:17Waxing Gibbous31Wed
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