Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Grand Pass, LA.
Next low tide : in 2h 16m at 10:38 am (0.9 ft)
Next high tide : 5:21 pm (1.1 ft)
Sunset today : 7:37 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Jun 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:412.05:557:53Waning Gibbous1Fri
2Sat2:231.712:39-0.25:557:53Waning Gibbous2Sat
3Sun2:511.41:070.15:557:54Third Quarter3Sun
4Mon11:041.11:170.35:557:54Third Quarter4Mon
5Tue9:311.112:550.67:280.55:557:55Third Quarter5Tue
6Wed8:471.37:110.25:547:55Waning Crescent6Wed
7Thu8:321.67:220.05:547:56Waning Crescent7Thu
8Fri8:461.77:44-0.25:547:56Waning Crescent8Fri
9Sat9:151.98:12-0.35:547:57Waning Crescent9Sat
10Sun9:501.98:44-0.35:547:57New Moon10Sun
11Mon10:292.09:20-0.35:547:57New Moon11Mon
12Tue11:111.99:58-0.35:547:58New Moon12Tue
13Wed11:531.910:36-0.35:547:58New Moon13Wed
14Thu12:351.811:12-0.25:547:59Waxing Crescent14Thu
15Fri1:151.811:45-0.15:547:59Waxing Crescent15Fri
16Sat1:531.65:547:59Waxing Crescent16Sat
17Sun2:271.412:120.15:558:00Waxing Crescent17Sun
18Mon2:571.212:340.25:558:00First Quarter18Mon
19Tue10:031.012:460.45:558:00First Quarter19Tue
20Wed8:371.112:180.66:560.65:558:00First Quarter20Wed
21Thu7:301.35:560.35:558:01First Quarter21Thu
22Fri7:281.56:180.05:558:01Waxing Gibbous22Fri
23Sat7:581.86:57-0.35:568:01Waxing Gibbous23Sat
24Sun8:392.07:43-0.55:568:01Waxing Gibbous24Sun
25Mon9:272.18:32-0.75:568:01Full Moon25Mon
26Tue10:182.29:23-0.75:568:01Full Moon26Tue
27Wed11:102.210:13-0.65:578:02Full Moon27Wed
28Thu12:022.110:57-0.55:578:02Full Moon28Thu
29Fri12:521.911:30-0.25:578:02Waning Gibbous29Fri
30Sat1:361.611:500.15:588:02Waning Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760668)

Common Questions About Grand Pass, LA Tides

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

Slack tide in Grand Pass, LA is approximately 1:59 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 Pass, LA?

Grand Pass, LA is currently in a spring phase. Tonight's moon is 19% 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 Pass, 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 Pass, LA?

Tide predictions for Grand Pass, 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 Pass, LA?

Tide data for Grand Pass, LA is sourced from NOAA Station #8760668. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8760668.

What is the moon phase in Grand Pass, LA tonight?

Tonight the moon over Grand Pass, LA is Waxing Crescent (19% illuminated). This places Grand Pass, 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