Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Grand Pass, LA.
Next low tide : 11:32 pm (0.6 ft)
Next high tide : in 7h 07m at 9:37 am (1.0 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 - Mar 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:261.07:53-0.46:225:55Full Moon1Thu
2Fri8:15-0.26:215:56Full Moon2Fri
3Sat12:440.83:230.48:290.07:220.36:205:57Waning Gibbous3Sat
4Sun2:040.62:450.58:370.28:540.26:195:57Waning Gibbous4Sun
5Mon3:370.52:140.78:230.410:160.16:185:58Waning Gibbous5Mon
6Tue2:160.811:330.06:165:59Waning Gibbous6Tue
7Wed2:401.06:155:59Third Quarter7Wed
8Thu3:151.012:51-0.16:146:00Third Quarter8Thu
9Fri3:591.12:30-0.16:136:01Third Quarter9Fri
10Sat4:531.14:10-0.26:126:01Third Quarter10Sat
11Sun7:021.16:02-0.27:117:02Waning Crescent11Sun
12Mon8:231.16:40-0.27:097:03Waning Crescent12Mon
13Tue9:391.17:10-0.27:087:03Waning Crescent13Tue
14Wed10:471.17:35-0.17:077:04Waning Crescent14Wed
15Thu11:541.07:59-0.17:067:05New Moon15Thu
16Fri8:230.17:057:05New Moon16Fri
17Sat1:061.03:370.58:460.27:310.47:037:06New Moon17Sat
18Sun2:250.92:530.69:060.48:460.37:027:07New Moon18Sun
19Mon3:560.82:000.89:130.610:000.27:017:07Waxing Crescent19Mon
20Tue2:031.011:140.07:007:08Waxing Crescent20Tue
21Wed2:281.26:597:08Waxing Crescent21Wed
22Thu3:041.312:27-0.16:577:09Waxing Crescent22Thu
23Fri3:471.51:43-0.26:567:10First Quarter23Fri
24Sat4:381.53:04-0.26:557:10First Quarter24Sat
25Sun5:371.54:26-0.36:547:11First Quarter25Sun
26Mon6:521.45:33-0.36:527:11Waxing Gibbous26Mon
27Tue8:291.36:23-0.26:517:12Waxing Gibbous27Tue
28Wed10:271.27:000.06:507:13Waxing Gibbous28Wed
29Thu7:240.26:497:13Waxing Gibbous29Thu
30Fri12:221.02:290.77:400.46:590.56:487:14Full Moon30Fri
31Sat2:030.91:480.87:510.68:050.46:467:15Full Moon31Sat
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 4:34 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 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