Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Thursday, August 13, 2026
The tide is currently rising in Grand Pass, LA.
Next low tide : 9:54 pm (0.4 ft)
Next high tide : in 10h 18m at 12:28 pm (1.8 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 - Dec 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:431.59:34-0.66:354:56Waxing Crescent1Sun
2Mon10:14-0.56:364:56Waxing Crescent2Mon
3Tue12:231.410:49-0.46:374:56Waxing Crescent3Tue
4Wed12:581.211:20-0.26:374:56First Quarter4Wed
5Thu1:281.011:45-0.16:384:56First Quarter5Thu
6Fri1:450.89:350.712:030.16:394:56First Quarter6Fri
7Sat8:520.712:020.26:404:56First Quarter7Sat
8Sun8:310.86:540.26:404:57Waxing Gibbous8Sun
9Mon8:190.96:290.06:414:57Waxing Gibbous9Mon
10Tue8:191.06:14-0.26:424:57Waxing Gibbous10Tue
11Wed8:381.16:21-0.36:434:57Waxing Gibbous11Wed
12Thu9:071.26:45-0.56:434:57Waxing Gibbous12Thu
13Fri9:401.27:16-0.66:444:58Full Moon13Fri
14Sat10:161.37:52-0.76:454:58Full Moon14Sat
15Sun10:531.38:31-0.76:454:58Full Moon15Sun
16Mon11:301.29:10-0.76:464:59Waning Gibbous16Mon
17Tue9:49-0.76:464:59Waning Gibbous17Tue
18Wed12:081.110:26-0.66:474:59Waning Gibbous18Wed
19Thu12:430.910:58-0.56:485:00Waning Gibbous19Thu
20Fri1:120.79:270.511:21-0.36:485:00Third Quarter20Fri
21Sat8:140.511:20-0.16:495:01Third Quarter21Sat
22Sun7:350.77:000.06:495:01Third Quarter22Sun
23Mon7:140.86:04-0.36:505:02Third Quarter23Mon
24Tue7:271.06:03-0.56:505:02Waning Crescent24Tue
25Wed8:011.26:23-0.86:505:03Waning Crescent25Wed
26Thu8:431.36:54-0.96:515:04Waning Crescent26Thu
27Fri9:261.37:29-1.06:515:04New Moon27Fri
28Sat10:101.38:05-1.06:525:05New Moon28Sat
29Sun10:531.28:40-0.96:525:05New Moon29Sun
30Mon11:341.09:13-0.86:525:06Waxing Crescent30Mon
31Tue9:42-0.76:525:07Waxing Crescent31Tue
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 5:11 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 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