Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Saturday, June 6, 2026
The tide is currently falling in Grand Isle, LA.
Next low tide (tomorrow) : in 11h 01m at 12:20 am (0.1 ft)
Next high tide (tomorrow) : 1:17 pm (0.9 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 6:00 am
Moon phase : Third Quarter (67% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - Aug 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:371.68:42-0.36:207:52New Moon1Sun
2Mon10:361.59:27-0.16:207:51New Moon2Mon
3Tue11:361.310:040.16:217:50New Moon3Tue
4Wed12:401.110:170.46:217:49Waxing Crescent4Wed
5Thu2:080.89:150.66:227:49Waxing Crescent5Thu
6Fri3:070.711:260.56:237:48Waxing Crescent6Fri
7Sat2:431.01:480.36:237:47First Quarter7Sat
8Sun3:091.23:010.16:247:46First Quarter8Sun
9Mon3:541.34:010.06:247:45First Quarter9Mon
10Tue4:491.44:570.06:257:44First Quarter10Tue
11Wed5:511.45:50-0.16:267:44Waxing Gibbous11Wed
12Thu6:541.46:380.06:267:43Waxing Gibbous12Thu
13Fri7:521.47:200.06:277:42Waxing Gibbous13Fri
14Sat8:431.47:560.06:277:41Waxing Gibbous14Sat
15Sun9:261.48:250.16:287:40Full Moon15Sun
16Mon10:041.38:450.26:287:39Full Moon16Mon
17Tue10:391.28:540.36:297:38Full Moon17Tue
18Wed11:161.18:440.56:297:37Full Moon18Wed
19Thu12:000.98:030.66:307:36Waning Gibbous19Thu
20Fri2:190.81:060.87:060.76:390.76:317:35Waning Gibbous20Fri
21Sat1:340.910:070.66:317:34Waning Gibbous21Sat
22Sun1:401.112:160.56:327:33Waning Gibbous22Sun
23Mon2:091.21:400.36:327:32Third Quarter23Mon
24Tue2:541.42:490.26:337:31Third Quarter24Tue
25Wed3:521.53:530.06:337:30Third Quarter25Wed
26Thu5:001.64:53-0.16:347:28Third Quarter26Thu
27Fri6:131.65:50-0.16:347:27Waning Crescent27Fri
28Sat7:261.76:44-0.16:357:26Waning Crescent28Sat
29Sun8:391.67:330.06:357:25Waning Crescent29Sun
30Mon9:521.58:180.26:367:24New Moon30Mon
31Tue11:101.38:530.56:367:23New Moon31Tue
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 6:48 am — 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 transitional phase. Tonight's moon is 67% 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 (67% 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