Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Grand Pass, LA.
Next low tide (tomorrow) : 3:40 pm (0.3 ft)
Next high tide (tomorrow) : in 8h 08m at 4:32 am (1.6 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:17 am
Moon phase : Third Quarter (65% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Sep 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:081.78:290.76:337:20Full Moon1Thu
2Fri4:111.11:301.66:311.18:440.96:337:19Full Moon2Fri
3Sat2:591.23:071.48:061.08:471.16:347:18Full Moon3Sat
4Sun1:591.49:270.86:357:17Waning Gibbous4Sun
5Mon1:461.610:470.76:357:15Waning Gibbous5Mon
6Tue2:091.812:060.56:367:14Waning Gibbous6Tue
7Wed2:452.01:270.46:367:13Third Quarter7Wed
8Thu3:292.12:570.36:377:12Third Quarter8Thu
9Fri4:202.24:270.26:377:10Third Quarter9Fri
10Sat5:192.25:360.26:387:09Third Quarter10Sat
11Sun6:302.16:270.36:387:08Waning Crescent11Sun
12Mon8:002.07:050.46:397:07Waning Crescent12Mon
13Tue9:451.97:280.66:397:05Waning Crescent13Tue
14Wed11:281.77:350.96:407:04New Moon14Wed
15Thu2:501.21:091.66:021.17:371.16:417:03New Moon15Thu
16Fri1:421.32:481.47:221.07:361.26:417:02New Moon16Fri
17Sat1:011.54:491.48:270.87:091.36:427:00New Moon17Sat
18Sun12:451.69:270.76:426:59Waxing Crescent18Sun
19Mon1:051.810:260.66:436:58Waxing Crescent19Mon
20Tue1:361.911:260.66:436:57Waxing Crescent20Tue
21Wed2:132.012:290.66:446:55Waxing Crescent21Wed
22Thu2:552.01:370.66:446:54First Quarter22Thu
23Fri3:402.02:580.66:456:53First Quarter23Fri
24Sat4:312.04:230.66:456:52First Quarter24Sat
25Sun5:291.95:200.66:466:50First Quarter25Sun
26Mon6:421.85:560.76:476:49Waxing Gibbous26Mon
27Tue8:261.76:200.86:476:48Waxing Gibbous27Tue
28Wed10:231.66:400.96:486:47Waxing Gibbous28Wed
29Thu2:151.212:121.55:241.26:571.16:486:45Waxing Gibbous29Thu
30Fri1:001.32:051.56:381.07:071.26:496:44Full Moon30Fri
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 10:06 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 transitional phase. Tonight's moon is 65% 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 shifting between spring and neap.

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 Third Quarter (65% illuminated). This places Grand Pass, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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