29.2633’ N, 89.9567’ W

Grand Isle, LA

87°
H -°
L 80°
ENE
3mph
Low tide
8:49 pm

Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Friday, August 28, 2026
The tide is currently falling in Grand Isle, LA.
Next low tide : in 4h 01m at 8:49 pm (0.5 ft)
Next high tide (tomorrow) : 12:37 pm (1.0 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 6:35 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - Mar 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:550.18:100.03:240.16:255:59New Moon1Wed
2Thu12:180.28:450.14:460.06:245:59New Moon2Thu
3Fri1:000.312:060.35:200.26:080.06:236:00Waxing Crescent3Fri
4Sat12:170.410:260.06:226:01Waxing Crescent4Sat
5Sun12:440.511:34-0.16:216:01Waxing Crescent5Sun
6Mon1:190.66:196:02Waxing Crescent6Mon
7Tue1:590.712:36-0.16:186:03First Quarter7Tue
8Wed2:440.71:41-0.26:176:03First Quarter8Wed
9Thu3:380.72:41-0.26:166:04First Quarter9Thu
10Fri4:450.73:31-0.26:156:04First Quarter10Fri
11Sat5:580.74:12-0.26:146:05Waxing Gibbous11Sat
12Sun7:070.74:48-0.26:136:06Waxing Gibbous12Sun
13Mon8:100.75:20-0.26:116:06Waxing Gibbous13Mon
14Tue9:140.75:49-0.16:106:07Waxing Gibbous14Tue
15Wed12:140.26:140.12:200.26:096:07Full Moon15Wed
16Thu11:130.311:470.55:290.23:550.26:086:08Full Moon16Thu
17Fri11:150.44:480.35:120.16:076:09Full Moon17Fri
18Sat1:320.411:27 AM0.64:120.46:440.06:066:09Full Moon18Sat
19Sun11:420.79:52-0.16:046:10Waning Gibbous19Sun
20Mon12:090.811:06-0.26:036:10Waning Gibbous20Mon
21Tue12:531.06:026:11Waning Gibbous21Tue
22Wed1:471.012:15-0.36:016:12Third Quarter22Wed
23Thu2:491.01:26-0.36:006:12Third Quarter23Thu
24Fri4:091.02:38-0.35:596:13Third Quarter24Fri
25Sat5:520.93:43-0.25:576:13Waning Crescent25Sat
26Sun7:310.84:38-0.15:566:14Waning Crescent26Sun
27Mon9:000.75:260.15:556:15Waning Crescent27Mon
28Tue11:030.410:290.66:050.22:080.35:546:15Waning Crescent28Tue
29Wed10:240.56:280.43:390.35:536:16New Moon29Wed
30Thu12:020.69:56 AM0.63:280.54:520.25:516:16New Moon30Thu
31Fri9:490.76:040.15:506:17New Moon31Fri
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 100% 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 (100% 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