Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Thursday, August 13, 2026
The tide is currently falling in Grand Pass, LA.
Next low tide : in 2h 43m at 9:54 pm (0.4 ft)
Next high tide (tomorrow) : 1:38 pm (1.6 ft)
Sunset today : 7:40 pm
Sunrise tomorrow : 6:23 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Apr 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:570.75:290.34:450.65:466:15Waxing Gibbous1Sat
2Sun11:540.85:430.65:580.45:456:15Full Moon2Sun
3Mon1:400.911:16 AM1.05:470.76:590.25:446:16Full Moon3Mon
4Tue11:031.27:570.15:436:16Full Moon4Tue
5Wed11:251.38:530.05:426:17Full Moon5Wed
6Thu11:591.59:490.05:406:18Waning Gibbous6Thu
7Fri12:371.510:450.05:396:18Waning Gibbous7Fri
8Sat1:181.511:400.05:386:19Waning Gibbous8Sat
9Sun1:591.55:376:20Third Quarter9Sun
10Mon2:421.412:380.15:366:20Third Quarter10Mon
11Tue3:281.31:390.25:346:21Third Quarter11Tue
12Wed4:221.22:410.35:336:21Third Quarter12Wed
13Thu5:411.13:330.45:326:22Third Quarter13Thu
14Fri9:211.04:070.55:316:23Waning Crescent14Fri
15Sat11:360.911:171.04:320.64:210.75:306:23Waning Crescent15Sat
16Sun10:550.94:520.75:210.55:296:24Waning Crescent16Sun
17Mon1:111.010:15 AM1.05:090.86:110.45:286:24Waning Crescent17Mon
18Tue3:091.010:02 AM1.25:091.06:590.25:276:25New Moon18Tue
19Wed10:211.37:480.15:266:26New Moon19Wed
20Thu10:511.58:400.05:256:26New Moon20Thu
21Fri11:261.69:34-0.15:236:27Waxing Crescent21Fri
22Sat12:061.710:31-0.15:226:28Waxing Crescent22Sat
23Sun12:491.811:27-0.15:216:28Waxing Crescent23Sun
24Mon1:331.75:206:29Waxing Crescent24Mon
25Tue2:181.612:230.05:196:29First Quarter25Tue
26Wed3:021.51:160.15:186:30First Quarter26Wed
27Thu3:461.22:050.25:176:31First Quarter27Thu
28Fri11:471.02:420.55:166:31Waxing Gibbous28Fri
29Sat10:321.13:050.75:140.75:166:32Waxing Gibbous29Sat
30Sun12:370.910:54 AM1.24:030.96:560.46:157:33Waxing Gibbous30Sun
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 5:46 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 1% 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 (1% 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