Tides Today & Tomorrow in Grand Isle, LA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Grand Isle, LA.
Next low tide : 6:02 pm (-0.1 ft)
Next high tide : in 2h 56m at 6:39 am (1.1 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 6:01 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8761724
Common Questions About Tides

Grand Isle, LA Tides - May 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:551.49:43-0.26:177:36New Moon1Wed
2Thu10:391.510:41-0.26:167:36Waxing Crescent2Thu
3Fri11:291.511:34-0.26:157:37Waxing Crescent3Fri
4Sat12:221.46:147:38Waxing Crescent4Sat
5Sun1:151.412:25-0.16:147:38Waxing Crescent5Sun
6Mon2:021.31:13-0.16:137:39First Quarter6Mon
7Tue2:421.22:010.06:127:40First Quarter7Tue
8Wed3:111.02:440.16:117:40First Quarter8Wed
9Thu3:210.93:150.36:117:41First Quarter9Thu
10Fri11:510.73:070.46:107:42Waxing Gibbous10Fri
11Sat10:240.82:230.56:130.56:097:42Waxing Gibbous11Sat
12Sun9:190.96:340.36:097:43Waxing Gibbous12Sun
13Mon9:141.07:030.26:087:43Waxing Gibbous13Mon
14Tue9:201.27:400.06:077:44Full Moon14Tue
15Wed9:291.38:24-0.16:077:45Full Moon15Wed
16Thu9:471.49:15-0.26:067:45Full Moon16Thu
17Fri10:191.510:10-0.36:067:46Full Moon17Fri
18Sat11:021.611:05-0.46:057:46Waning Gibbous18Sat
19Sun11:551.66:057:47Waning Gibbous19Sun
20Mon12:531.512:00-0.46:047:48Waning Gibbous20Mon
21Tue1:461.412:53-0.36:047:48Third Quarter21Tue
22Wed2:301.21:47-0.16:037:49Third Quarter22Wed
23Thu2:501.02:370.16:037:49Third Quarter23Thu
24Fri10:430.78:300.73:080.35:310.76:037:50Waning Crescent24Fri
25Sat9:120.81:140.65:520.46:027:51Waning Crescent25Sat
26Sun8:351.06:300.16:027:51Waning Crescent26Sun
27Mon8:291.27:14-0.16:017:52Waning Crescent27Mon
28Tue8:471.48:01-0.36:017:52New Moon28Tue
29Wed9:181.58:50-0.36:017:53New Moon29Wed
30Thu9:561.59:40-0.36:017:53New Moon30Thu
31Fri10:371.510:28-0.36:007:54New Moon31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8761724)

Common Questions About Grand Isle, LA Tides

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

Slack tide in Grand Isle, LA is approximately 12:20 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 transitional phase. Tonight's moon is 76% 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 Waxing Gibbous (76% 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