Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Grand Isle, LA.
Next low tide : in 7m at 4:35 pm (0.3 ft)
Next high tide (tomorrow) : 5:21 am (1.0 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:06 am
Moon phase : Third Quarter (51% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - Apr 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:550.78:17 AM0.75:250.66:480.06:487:18New Moon1Thu
2Fri9:320.99:17-0.16:467:19Waxing Crescent2Fri
3Sat10:391.110:58-0.36:457:19Waxing Crescent3Sat
4Sun11:521.36:447:20Waxing Crescent4Sun
5Mon1:081.312:12-0.46:437:20Waxing Crescent5Mon
6Tue2:161.31:23-0.46:427:21First Quarter6Tue
7Wed3:211.32:36-0.36:417:22First Quarter7Wed
8Thu4:301.23:48-0.26:407:22First Quarter8Thu
9Fri5:561.04:51-0.16:387:23First Quarter9Fri
10Sat7:400.95:410.06:377:23Waxing Gibbous10Sat
11Sun9:180.86:180.26:367:24Waxing Gibbous11Sun
12Mon12:240.56:380.43:050.56:357:25Waxing Gibbous12Mon
13Tue11:020.64:470.54:530.46:347:25Waxing Gibbous13Tue
14Wed1:120.610:15 AM0.74:000.66:120.36:337:26Full Moon14Wed
15Thu10:110.97:240.26:327:26Full Moon15Thu
16Fri10:191.08:380.16:317:27Full Moon16Fri
17Sat10:341.19:440.06:307:28Full Moon17Sat
18Sun11:001.210:39-0.16:297:28Waning Gibbous18Sun
19Mon11:361.311:30-0.16:287:29Waning Gibbous19Mon
20Tue12:221.36:277:29Waning Gibbous20Tue
21Wed1:141.412:22-0.26:267:30Waning Gibbous21Wed
22Thu2:061.41:16-0.26:257:31Third Quarter22Thu
23Fri3:001.32:15-0.26:247:31Third Quarter23Fri
24Sat4:001.23:16-0.16:237:32Third Quarter24Sat
25Sun6:211.04:130.06:227:32Waning Crescent25Sun
26Mon9:060.95:020.26:217:33Waning Crescent26Mon
27Tue10:450.611:450.85:360.53:430.56:207:34Waning Crescent27Tue
28Wed9:550.83:430.75:420.26:197:34Waning Crescent28Wed
29Thu9:111.07:100.06:187:35New Moon29Thu
30Fri9:081.38:31-0.26:177:36New Moon30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8761724)

Common Questions About Grand Isle, LA Tides

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What time does the tide turn (slack tide) in Grand Isle, LA today?

Slack tide in Grand Isle, LA is approximately 10:58 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Grand Isle, LA?

Grand Isle, LA is currently in a neap phase. Tonight's moon is 51% 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 minimum.

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 (51% illuminated). This places Grand Isle, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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