Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Friday, August 14, 2026
The tide is currently rising in Grand Pass, LA.
Next low tide : 9:56 pm (0.7 ft)
Next high tide : in 12h 01m at 1:38 pm (1.6 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:23 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Sep 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:151.94:320.56:337:20First Quarter1Thu
2Fri5:041.95:360.56:337:19First Quarter2Fri
3Sat6:031.96:210.56:347:18First Quarter3Sat
4Sun7:181.86:560.56:357:16Waxing Gibbous4Sun
5Mon8:431.87:200.66:357:15Waxing Gibbous5Mon
6Tue9:571.87:340.66:367:14Waxing Gibbous6Tue
7Wed11:031.77:460.76:367:13Waxing Gibbous7Wed
8Thu12:111.68:020.96:377:11Full Moon8Thu
9Fri3:141.21:261.66:301.18:181.06:377:10Full Moon9Fri
10Sat2:291.22:471.57:431.08:301.16:387:09Full Moon10Sat
11Sun1:431.44:261.48:500.98:181.36:387:08Full Moon11Sun
12Mon1:251.59:590.86:397:07Waning Gibbous12Mon
13Tue1:451.711:110.66:397:05Waning Gibbous13Tue
14Wed2:161.912:240.56:407:04Waning Gibbous14Wed
15Thu2:562.01:390.46:417:03Third Quarter15Thu
16Fri3:412.13:020.46:417:02Third Quarter16Fri
17Sat4:332.14:240.46:427:00Third Quarter17Sat
18Sun5:342.15:290.46:426:59Third Quarter18Sun
19Mon6:522.06:150.56:436:58Waning Crescent19Mon
20Tue8:441.86:460.76:436:57Waning Crescent20Tue
21Wed10:541.77:030.96:446:55Waning Crescent21Wed
22Thu2:221.212:471.55:471.27:111.16:446:54New Moon22Thu
23Fri1:151.32:371.57:051.07:121.36:456:53New Moon23Fri
24Sat12:351.58:090.86:466:52New Moon24Sat
25Sun12:221.711:431.88:090.75:465:50Waxing Crescent25Sun
26Mon9:070.65:475:49Waxing Crescent26Mon
27Tue12:161.910:060.55:475:48Waxing Crescent27Tue
28Wed12:542.011:050.55:485:47Waxing Crescent28Wed
29Thu1:342.012:070.65:485:45First Quarter29Thu
30Fri2:172.01:140.65:495:44First Quarter30Fri
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 5:47 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 5% 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 (5% 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