29.2633’ N, 89.9567’ W

Grand Isle, LA

85°
H -°
L 81°
ESE
3mph
High tide
2:39 am

Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Wednesday, September 2, 2026
The tide is currently rising in Grand Isle, LA.
Next low tide (tomorrow) : 2:15 pm (0.1 ft)
Next high tide (tomorrow) : in 5h 09m at 2:39 am (1.5 ft)
Sunset today : 7:20 pm
Sunrise tomorrow : 6:38 am
Moon phase : Third Quarter (68% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - Oct 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:241.612:580.36:536:44Waning Gibbous1Wed
2Thu2:101.71:560.26:546:43Third Quarter2Thu
3Fri2:581.72:560.26:546:42Third Quarter3Fri
4Sat3:501.63:540.36:556:41Third Quarter4Sat
5Sun5:001.64:460.36:556:40Waning Crescent5Sun
6Mon6:541.55:330.56:566:38Waning Crescent6Mon
7Tue8:521.311:550.96:150.76:566:37Waning Crescent7Tue
8Wed10:561.210:351.02:420.96:310.96:576:36Waning Crescent8Wed
9Thu10:001.24:540.76:586:35New Moon9Thu
10Fri9:251.56:400.46:586:34New Moon10Fri
11Sat10:071.78:280.26:596:33New Moon11Sat
12Sun11:081.89:550.16:596:32Waxing Crescent12Sun
13Mon11:080.07:006:31Waxing Crescent13Mon
14Tue12:191.912:150.07:016:30Waxing Crescent14Tue
15Wed1:281.81:220.07:016:28First Quarter15Wed
16Thu2:301.82:300.17:026:27First Quarter16Thu
17Fri3:281.63:370.37:036:26First Quarter17Fri
18Sat4:241.54:340.47:036:25First Quarter18Sat
19Sun5:351.35:170.67:046:24Waxing Gibbous19Sun
20Mon8:041.111:160.95:380.87:056:23Waxing Gibbous20Mon
21Tue10:531.010:071.05:110.92:460.97:056:22Waxing Gibbous21Tue
22Wed9:221.26:120.77:066:21Waxing Gibbous22Wed
23Thu9:251.36:530.67:076:20Full Moon23Thu
24Fri9:431.47:330.47:076:20Full Moon24Fri
25Sat10:051.58:170.37:086:19Full Moon25Sat
26Sun10:331.69:060.27:096:18Full Moon26Sun
27Mon11:051.69:570.27:096:17Waning Gibbous27Mon
28Tue11:441.610:470.17:106:16Waning Gibbous28Tue
29Wed11:340.17:116:15Waning Gibbous29Wed
30Thu12:291.612:200.17:116:14Waning Gibbous30Thu
31Fri1:141.61:070.17:126:14Third Quarter31Fri
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 transitional phase. Tonight's moon is 68% 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 shifting between spring and neap.

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 (68% illuminated). This places Grand Isle, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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