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 2h 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 - Apr 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:430.91:120.98:040.68:290.36:467:15Full Moon1Wed
2Thu4:380.912:461.07:570.89:330.16:457:15Full Moon2Thu
3Fri1:051.310:400.06:447:16Waning Gibbous3Fri
4Sat1:391.411:47-0.16:427:17Waning Gibbous4Sat
5Sun2:201.66:417:17Waning Gibbous5Sun
6Mon3:051.612:55-0.16:407:18Third Quarter6Mon
7Tue3:521.62:05-0.16:397:18Third Quarter7Tue
8Wed4:431.53:19-0.16:387:19Third Quarter8Wed
9Thu5:411.34:290.06:367:20Third Quarter9Thu
10Fri7:031.25:200.26:357:20Waning Crescent10Fri
11Sat10:251.05:510.36:347:21Waning Crescent11Sat
12Sun1:400.96:090.55:490.76:337:22Waning Crescent12Sun
13Mon12:271.012:550.96:240.66:500.66:327:22New Moon13Mon
14Tue2:140.912:291.06:370.87:410.46:317:23New Moon14Tue
15Wed3:580.912:021.16:410.98:270.36:307:23New Moon15Wed
16Thu12:071.39:130.26:297:24New Moon16Thu
17Fri12:311.410:000.16:277:25Waxing Crescent17Fri
18Sat1:021.410:490.16:267:25Waxing Crescent18Sat
19Sun1:381.511:400.16:257:26Waxing Crescent19Sun
20Mon2:161.56:247:26Waxing Crescent20Mon
21Tue2:561.512:330.16:237:27Waxing Crescent21Tue
22Wed3:381.51:280.26:227:28First Quarter22Wed
23Thu4:241.42:240.26:217:28First Quarter23Thu
24Fri5:171.33:210.36:207:29First Quarter24Fri
25Sat6:391.14:130.36:197:30First Quarter25Sat
26Sun1:291.04:580.55:080.96:187:30Waxing Gibbous26Sun
27Mon12:311.05:330.66:100.76:177:31Waxing Gibbous27Mon
28Tue1:071.011:49 AM1.15:570.87:030.56:167:32Waxing Gibbous28Tue
29Wed3:431.011:05 AM1.26:001.07:540.26:157:32Full Moon29Wed
30Thu11:121.48:470.06:147:33Full 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 4:31 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