Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in Grand Pass, LA.
Next low tide : 9:39 pm (0.1 ft)
Next high tide : in 6h 52m at 11:23 am (2.0 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 6:22 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Sep 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:511.61:540.86:337:20Third Quarter1Tue
2Wed4:251.73:450.76:347:19Third Quarter2Wed
3Thu5:101.85:170.66:347:18Third Quarter3Thu
4Fri6:061.86:010.66:357:16Third Quarter4Fri
5Sat7:161.86:340.56:357:15Waning Crescent5Sat
6Sun8:331.87:020.56:367:14Waning Crescent6Sun
7Mon9:421.87:270.66:367:13Waning Crescent7Mon
8Tue10:431.87:530.66:377:11Waning Crescent8Tue
9Wed11:441.78:190.76:377:10New Moon9Wed
10Thu12:521.68:430.96:387:09New Moon10Thu
11Fri3:461.22:101.57:291.19:041.06:387:08New Moon11Fri
12Sat3:081.33:411.48:471.09:131.26:397:07Waxing Crescent12Sat
13Sun2:191.410:060.96:407:05Waxing Crescent13Sun
14Mon2:171.611:240.86:407:04Waxing Crescent14Mon
15Tue2:421.812:410.66:417:03Waxing Crescent15Tue
16Wed3:181.92:000.56:417:02First Quarter16Wed
17Thu4:022.03:270.46:427:00First Quarter17Thu
18Fri4:542.14:480.46:426:59First Quarter18Fri
19Sat5:572.05:480.46:436:58Waxing Gibbous19Sat
20Sun7:162.06:320.56:436:56Waxing Gibbous20Sun
21Mon8:591.97:040.66:446:55Waxing Gibbous21Mon
22Tue10:451.77:260.86:446:54Waxing Gibbous22Tue
23Wed12:231.67:421.06:456:53Full Moon23Wed
24Thu2:291.31:541.56:531.17:541.16:466:51Full Moon24Thu
25Fri1:541.33:211.47:571.08:021.26:466:50Full Moon25Fri
26Sat1:201.55:121.48:570.87:401.36:476:49Waning Gibbous26Sat
27Sun1:121.69:560.86:476:48Waning Gibbous27Sun
28Mon1:331.710:540.76:486:46Waning Gibbous28Mon
29Tue2:041.811:530.76:486:45Waning Gibbous29Tue
30Wed2:401.812:540.66:496:44Third Quarter30Wed
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 4:31 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 0% 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 New Moon (0% 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