Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Grand Pass, LA.
Next low tide : in 6h 29m at 3:35 pm (0.4 ft)
Next high tide (tomorrow) : 4:42 am (1.9 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 6:26 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Mar 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:261.45:34-0.76:225:55Waxing Gibbous1Thu
2Fri7:431.36:21-0.76:215:56Waxing Gibbous2Fri
3Sat8:571.27:01-0.66:205:57Waxing Gibbous3Sat
4Sun10:061.27:34-0.56:195:57Full Moon4Sun
5Mon11:131.07:56-0.36:185:58Full Moon5Mon
6Tue8:10-0.16:175:59Full Moon6Tue
7Wed12:220.93:290.48:220.06:250.36:165:59Full Moon7Wed
8Thu1:330.82:290.58:330.27:560.26:146:00Waning Gibbous8Thu
9Fri2:540.61:340.68:340.49:130.16:136:01Waning Gibbous9Fri
10Sat1:290.810:250.06:126:01Waning Gibbous10Sat
11Sun1:511.011:34-0.16:116:02Waning Gibbous11Sun
12Mon2:231.16:106:03Third Quarter12Mon
13Tue3:031.212:47-0.16:096:03Third Quarter13Tue
14Wed3:511.32:08-0.26:076:04Third Quarter14Wed
15Thu4:491.33:32-0.36:066:05Third Quarter15Thu
16Fri5:591.34:38-0.36:056:05Waning Crescent16Fri
17Sat7:171.45:29-0.46:046:06Waning Crescent17Sat
18Sun8:361.36:11-0.46:036:07Waning Crescent18Sun
19Mon9:571.26:48-0.36:016:07Waning Crescent19Mon
20Tue11:351.17:19-0.16:006:08New Moon20Tue
21Wed2:400.57:430.26:150.45:596:08New Moon21Wed
22Thu1:280.91:160.77:530.57:470.25:586:09New Moon22Thu
23Fri3:430.812:201.07:250.79:090.05:566:10Waxing Crescent23Fri
24Sat12:351.310:28-0.25:556:10Waxing Crescent24Sat
25Sun1:101.511:44-0.35:546:11Waxing Crescent25Sun
26Mon1:531.75:536:11Waxing Crescent26Mon
27Tue2:411.71:04-0.45:526:12First Quarter27Tue
28Wed3:341.72:33-0.45:506:13First Quarter28Wed
29Thu4:331.63:56-0.35:496:13First Quarter29Thu
30Fri5:461.44:58-0.25:486:14Waxing Gibbous30Fri
31Sat7:261.35:44-0.15:476:14Waxing Gibbous31Sat
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 10:08 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 neap phase. Tonight's moon is 46% 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 minimum.

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 First Quarter (46% illuminated). This places Grand Pass, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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