Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Grand Pass, LA.
Next low tide : in 3h 53m at 9:09 pm (-0.1 ft)
Next high tide (tomorrow) : 11:23 am (2.0 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:21 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Sep 1943

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:461.69:450.96:337:20New Moon1Wed
2Thu4:311.22:481.48:351.110:021.06:337:19Waxing Crescent2Thu
3Fri3:421.34:241.310:121.09:511.26:347:18Waxing Crescent3Fri
4Sat3:101.411:380.96:347:17Waxing Crescent4Sat
5Sun3:231.612:590.76:357:15First Quarter5Sun
6Mon3:521.82:210.66:367:14First Quarter6Mon
7Tue4:321.93:470.56:367:13First Quarter7Tue
8Wed5:232.05:030.36:377:12First Quarter8Wed
9Thu6:272.16:020.36:377:11Waxing Gibbous9Thu
10Fri7:432.16:500.36:387:09Waxing Gibbous10Fri
11Sat9:062.07:320.46:387:08Waxing Gibbous11Sat
12Sun10:301.98:060.56:397:07Full Moon12Sun
13Mon12:001.88:310.76:397:06Full Moon13Mon
14Tue1:361.68:461.06:407:04Full Moon14Tue
15Wed3:081.23:111.58:021.08:511.26:407:03Full Moon15Wed
16Thu2:251.45:091.39:230.98:221.36:417:02Waning Gibbous16Thu
17Fri2:011.610:390.86:427:01Waning Gibbous17Fri
18Sat2:191.711:520.76:426:59Waning Gibbous18Sat
19Sun2:501.91:030.66:436:58Third Quarter19Sun
20Mon3:281.92:190.66:436:57Third Quarter20Mon
21Tue4:101.93:480.66:446:56Third Quarter21Tue
22Wed4:591.95:060.66:446:54Third Quarter22Wed
23Thu6:001.85:550.66:456:53Waning Crescent23Thu
24Fri7:221.86:290.76:456:52Waning Crescent24Fri
25Sat9:051.76:530.76:466:51Waning Crescent25Sat
26Sun10:331.77:130.86:476:49Waning Crescent26Sun
27Mon11:501.67:340.96:476:48New Moon27Mon
28Tue2:491.21:081.66:211.27:551.06:486:47New Moon28Tue
29Wed2:101.32:271.57:231.08:131.26:486:46New Moon29Wed
30Thu1:271.43:551.48:210.98:191.36:496:44New Moon30Thu
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 4:16 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 Pass, LA?

Grand Pass, LA is currently in a spring phase. Tonight's moon is 2% 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 (2% 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