Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Grand Pass, LA.
Next low tide : in 12h 52m at 11:32 pm (0.6 ft)
Next high tide (tomorrow) : 8:26 am (1.2 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 5:56 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Oct 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:001.76:090.76:506:42Waxing Gibbous1Sun
2Mon9:491.66:410.86:516:41Waxing Gibbous2Mon
3Tue3:131.311:33 AM1.65:181.37:090.96:516:39Waxing Gibbous3Tue
4Wed2:111.31:141.56:311.17:321.16:526:38Full Moon4Wed
5Thu1:301.32:561.47:310.97:451.26:526:37Full Moon5Thu
6Fri12:361.48:310.86:536:36Full Moon6Fri
7Sat12:281.69:330.66:546:35Waning Gibbous7Sat
8Sun12:521.810:380.46:546:33Waning Gibbous8Sun
9Mon1:272.011:440.36:556:32Waning Gibbous9Mon
10Tue2:082.112:520.36:556:31Waning Gibbous10Tue
11Wed2:532.12:000.36:566:30Third Quarter11Wed
12Thu3:402.13:110.36:576:29Third Quarter12Thu
13Fri4:311.94:170.46:576:28Third Quarter13Fri
14Sat5:291.85:070.66:586:27Waning Crescent14Sat
15Sun6:511.65:380.76:596:25Waning Crescent15Sun
16Mon10:271.45:570.96:596:24Waning Crescent16Mon
17Tue1:141.212:351.35:571.16:111.07:006:23Waning Crescent17Tue
18Wed12:321.32:321.36:550.96:201.27:016:22New Moon18Wed
19Thu12:021.411:431.57:440.77:016:21New Moon19Thu
20Fri11:551.68:300.57:026:20New Moon20Fri
21Sat9:150.47:036:19New Moon21Sat
22Sun12:211.710:010.47:036:18Waxing Crescent22Sun
23Mon12:521.810:500.37:046:17Waxing Crescent23Mon
24Tue1:281.811:400.37:056:16Waxing Crescent24Tue
25Wed2:061.812:330.37:066:15Waxing Crescent25Wed
26Thu2:461.71:270.47:066:14First Quarter26Thu
27Fri3:271.72:220.47:076:13First Quarter27Fri
28Sat4:111.63:150.57:086:13First Quarter28Sat
29Sun5:011.44:040.57:086:12First Quarter29Sun
30Mon1:541.26:22 AM1.24:021.24:460.67:096:11Waxing Gibbous30Mon
31Tue12:541.210:49 AM1.15:261.05:180.87:106:10Waxing Gibbous31Tue
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 3:59 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 neap phase. Tonight's moon is 48% 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 (48% 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