Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Grand Pass, LA.
Next low tide (tomorrow) : 10:39 pm (0.7 ft)
Next high tide (tomorrow) : in 15h 34m at 2:30 pm (1.2 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Sep 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:091.83:530.66:337:19Third Quarter1Fri
2Sat4:501.85:120.56:347:18Third Quarter2Sat
3Sun5:411.96:010.56:347:17Third Quarter3Sun
4Mon6:451.96:410.56:357:16Waning Crescent4Mon
5Tue8:021.87:120.56:357:15Waning Crescent5Tue
6Wed9:191.87:350.66:367:13Waning Crescent6Wed
7Thu10:241.87:530.66:377:12Waning Crescent7Thu
8Fri11:241.78:110.76:377:11New Moon8Fri
9Sat12:231.78:320.86:387:10New Moon9Sat
10Sun4:221.21:251.66:251.28:540.96:387:09New Moon10Sun
11Mon3:311.22:311.57:451.19:131.16:397:07New Moon11Mon
12Tue2:561.33:481.48:571.09:231.26:397:06Waxing Crescent12Tue
13Wed2:171.410:090.96:407:05Waxing Crescent13Wed
14Thu2:241.611:230.86:407:04Waxing Crescent14Thu
15Fri2:491.712:350.76:417:02Waxing Crescent15Fri
16Sat3:231.81:500.66:417:01First Quarter16Sat
17Sun4:041.93:090.56:427:00First Quarter17Sun
18Mon4:542.04:270.46:426:59First Quarter18Mon
19Tue5:562.05:310.46:436:57Waxing Gibbous19Tue
20Wed7:152.06:210.46:446:56Waxing Gibbous20Wed
21Thu8:501.97:010.56:446:55Waxing Gibbous21Thu
22Fri10:361.87:330.76:456:53Waxing Gibbous22Fri
23Sat12:261.77:540.96:456:52Full Moon23Sat
24Sun2:371.22:111.57:031.18:061.16:466:51Full Moon24Sun
25Mon1:491.43:581.48:160.98:011.36:466:50Full Moon25Mon
26Tue1:101.59:250.86:476:48Waning Gibbous26Tue
27Wed1:181.710:330.66:476:47Waning Gibbous27Wed
28Thu1:481.911:390.66:486:46Waning Gibbous28Thu
29Fri2:241.912:440.66:496:45Third Quarter29Fri
30Sat3:042.01:510.66:496:44Third Quarter30Sat
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 6:34 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 91% 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 Waning Gibbous (91% 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