Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Grand Pass, LA.
Next low tide : 7:41 pm (-0.3 ft)
Next high tide : in 21m at 8:04 am (2.3 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Apr 1948

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:411.52:43-0.15:456:15Third Quarter1Thu
2Fri4:421.44:06-0.15:446:16Third Quarter2Fri
3Sat6:011.35:030.05:436:16Waning Crescent3Sat
4Sun7:491.35:410.15:426:17Waning Crescent4Sun
5Mon9:341.26:040.25:416:18Waning Crescent5Mon
6Tue11:121.16:160.35:396:18Waning Crescent6Tue
7Wed12:510.76:260.55:340.65:386:19New Moon7Wed
8Thu12:521.011:42 AM0.96:350.76:370.45:376:19New Moon8Thu
9Fri2:411.010:54 AM1.06:320.97:340.25:366:20New Moon9Fri
10Sat11:041.38:310.05:356:21New Moon10Sat
11Sun11:291.59:29-0.15:346:21Waxing Crescent11Sun
12Mon12:031.710:31-0.25:326:22Waxing Crescent12Mon
13Tue12:441.811:36-0.35:316:22Waxing Crescent13Tue
14Wed1:301.95:306:23Waxing Crescent14Wed
15Thu2:211.912:45-0.35:296:24First Quarter15Thu
16Fri3:151.81:58-0.35:286:24First Quarter16Fri
17Sat4:151.73:09-0.25:276:25First Quarter17Sat
18Sun5:291.54:07-0.15:266:26Waxing Gibbous18Sun
19Mon7:501.24:480.25:256:26Waxing Gibbous19Mon
20Tue12:480.95:090.44:510.85:246:27Waxing Gibbous20Tue
21Wed11:191.05:130.76:070.55:236:27Waxing Gibbous21Wed
22Thu10:221.27:060.25:226:28Full Moon22Thu
23Fri10:191.58:000.05:216:29Full Moon23Fri
24Sat10:441.78:52-0.25:206:29Full Moon24Sat
25Sun12:181.810:43-0.26:197:30Waning Gibbous25Sun
26Mon12:571.911:35-0.26:187:31Waning Gibbous26Mon
27Tue1:391.96:177:31Waning Gibbous27Tue
28Wed2:231.812:29-0.16:167:32Waning Gibbous28Wed
29Thu3:091.71:26-0.16:157:33Third Quarter29Thu
30Fri3:561.62:260.06:147:33Third 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 1:52 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 13% 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 Waning Crescent (13% 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