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 26m at 12:30 am (0.4 ft)
Next high tide : 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 - May 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:041.69:580.06:137:34Full Moon1Tue
2Wed12:371.710:440.06:127:35Waning Gibbous2Wed
3Thu1:131.711:310.06:117:35Waning Gibbous3Thu
4Fri1:521.76:107:36Waning Gibbous4Fri
5Sat2:321.612:200.16:107:37Waning Gibbous5Sat
6Sun3:131.61:100.16:097:37Third Quarter6Sun
7Mon3:561.42:000.26:087:38Third Quarter7Mon
8Tue4:401.32:500.36:077:38Third Quarter8Tue
9Wed5:381.13:360.46:077:39Third Quarter9Wed
10Thu12:431.04:160.55:150.96:067:40Waning Crescent10Thu
11Fri11:491.14:470.76:100.76:057:40Waning Crescent11Fri
12Sat1:300.911:07 AM1.15:050.96:560.46:047:41Waning Crescent12Sat
13Sun10:331.37:420.26:047:42Waning Crescent13Sun
14Mon10:421.58:300.06:037:42New Moon14Mon
15Tue11:091.79:21-0.26:027:43New Moon15Tue
16Wed11:451.910:15-0.36:027:44New Moon16Wed
17Thu12:262.011:10-0.36:017:44Waxing Crescent17Thu
18Fri1:112.06:017:45Waxing Crescent18Fri
19Sat1:571.912:04-0.36:007:46Waxing Crescent19Sat
20Sun2:401.812:55-0.26:007:46First Quarter20Sun
21Mon3:191.61:410.05:597:47First Quarter21Mon
22Tue3:441.32:200.25:597:47First Quarter22Tue
23Wed12:191.12:470.45:587:48First Quarter23Wed
24Thu11:131.12:580.68:090.75:587:49Waxing Gibbous24Thu
25Fri10:401.27:380.45:577:49Waxing Gibbous25Fri
26Sat10:211.47:430.25:577:50Waxing Gibbous26Sat
27Sun10:181.58:070.15:577:50Full Moon27Sun
28Mon10:341.68:370.05:567:51Full Moon28Mon
29Tue11:001.79:12-0.15:567:52Full Moon29Tue
30Wed11:321.89:50-0.15:567:52Full Moon30Wed
31Thu12:081.810:30-0.15:567:53Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760668)

Common Questions About Grand Pass, LA Tides

Show All
What time does the tide turn (slack tide) in Grand Pass, LA today?

Slack tide in Grand Pass, LA is approximately 5:03 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