Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Grand Pass, LA.
Next low tide : in 3h 12m at 10:38 am (0.9 ft)
Next high tide : 5:21 pm (1.1 ft)
Sunset today : 7:37 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Jul 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:091.311:510.45:588:02Waning Gibbous1Sun
2Mon9:071.011:110.65:598:02Third Quarter2Mon
3Tue7:311.26:320.55:598:02Third Quarter3Tue
4Wed6:561.46:200.25:598:02Third Quarter4Wed
5Thu6:581.66:400.06:008:02Third Quarter5Thu
6Fri7:271.87:08-0.26:008:02Waning Crescent6Fri
7Sat8:071.97:40-0.26:018:01Waning Crescent7Sat
8Sun8:521.98:13-0.36:018:01Waning Crescent8Sun
9Mon9:381.98:46-0.36:028:01New Moon9Mon
10Tue10:231.99:19-0.26:028:01New Moon10Tue
11Wed11:071.99:49-0.26:038:01New Moon11Wed
12Thu11:491.810:16-0.16:038:00New Moon12Thu
13Fri12:281.710:400.06:048:00New Moon13Fri
14Sat1:071.611:020.16:048:00Waxing Crescent14Sat
15Sun1:451.411:190.36:058:00Waxing Crescent15Sun
16Mon2:231.211:270.56:057:59Waxing Crescent16Mon
17Tue7:541.03:030.912:240.96:067:59Waxing Crescent17Tue
18Wed6:081.16:000.66:067:58First Quarter18Wed
19Thu5:311.34:340.46:077:58First Quarter19Thu
20Fri5:511.65:180.16:087:58First Quarter20Fri
21Sat6:301.86:05-0.26:087:57Waxing Gibbous21Sat
22Sun7:212.06:53-0.46:097:57Waxing Gibbous22Sun
23Mon8:192.17:42-0.56:097:56Waxing Gibbous23Mon
24Tue9:192.28:31-0.56:107:56Waxing Gibbous24Tue
25Wed10:182.29:17-0.46:117:55Full Moon25Wed
26Thu11:162.19:56-0.36:117:54Full Moon26Thu
27Fri12:141.910:250.06:127:54Full Moon27Fri
28Sat1:111.610:380.36:127:53Waning Gibbous28Sat
29Sun2:081.310:330.66:137:53Waning Gibbous29Sun
30Mon5:451.03:071.011:080.99:360.86:147:52Waning Gibbous30Mon
31Tue4:511.31:480.66:147:51Third Quarter31Tue
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 1:59 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 19% 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 Waxing Crescent (19% 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