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 (tomorrow) : 9:56 pm (0.7 ft)
Next high tide (tomorrow) : in 14h 52m at 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 - Dec 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:260.97:100.46:354:56First Quarter1Thu
2Fri7:541.05:510.26:364:56Waxing Gibbous2Fri
3Sat7:541.25:35-0.16:364:56Waxing Gibbous3Sat
4Sun8:201.36:05-0.46:374:56Waxing Gibbous4Sun
5Mon8:561.56:43-0.66:384:56Waxing Gibbous5Mon
6Tue9:371.67:27-0.86:394:56Full Moon6Tue
7Wed10:211.68:14-0.86:394:56Full Moon7Wed
8Thu11:071.69:02-0.96:404:56Full Moon8Thu
9Fri11:521.59:47-0.86:414:57Waning Gibbous9Fri
10Sat10:28-0.76:424:57Waning Gibbous10Sat
11Sun12:341.211:00-0.56:424:57Waning Gibbous11Sun
12Mon1:081.011:20-0.26:434:57Third Quarter12Mon
13Tue1:190.78:250.611:220.06:444:58Third Quarter13Tue
14Wed7:370.79:040.16:444:58Third Quarter14Wed
15Thu7:210.96:06-0.16:454:58Third Quarter15Thu
16Fri7:251.06:09-0.36:464:58Waning Crescent16Fri
17Sat7:491.16:26-0.56:464:59Waning Crescent17Sat
18Sun8:211.26:48-0.76:474:59Waning Crescent18Sun
19Mon8:571.27:12-0.76:475:00New Moon19Mon
20Tue9:351.27:38-0.86:485:00New Moon20Tue
21Wed10:141.28:06-0.86:485:01New Moon21Wed
22Thu10:521.28:36-0.86:495:01New Moon22Thu
23Fri11:301.19:07-0.76:495:02New Moon23Fri
24Sat9:38-0.66:505:02Waxing Crescent24Sat
25Sun12:071.010:07-0.66:505:03Waxing Crescent25Sun
26Mon12:410.810:32-0.46:515:03Waxing Crescent26Mon
27Tue1:130.69:140.410:51-0.311:310.46:515:04Waxing Crescent27Tue
28Wed1:370.47:410.410:55-0.16:515:05First Quarter28Wed
29Thu6:530.59:020.06:525:05First Quarter29Thu
30Fri6:180.65:56-0.26:525:06First Quarter30Fri
31Sat6:380.85:26-0.46:525:06First Quarter31Sat
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 5:47 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