Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Grand Pass, LA.
Next low tide : in 3h 49m at 5:58 pm (0.3 ft)
Next high tide (tomorrow) : 6:34 am (2.0 ft)
Sunset today : 7:32 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - Nov 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:221.63:450.37:116:09Third Quarter1Wed
2Thu5:191.44:320.47:126:08Waning Crescent2Thu
3Fri1:551.27:17 AM1.24:511.15:080.67:136:07Waning Crescent3Fri
4Sat12:401.112:131.05:590.85:310.87:136:06Waning Crescent4Sat
5Sun9:511.35:510.56:145:06Waning Crescent5Sun
6Mon9:491.66:420.26:155:05New Moon6Mon
7Tue10:161.87:35-0.16:165:04New Moon7Tue
8Wed10:542.08:30-0.26:175:04New Moon8Wed
9Thu11:372.09:27-0.46:175:03Waxing Crescent9Thu
10Fri10:25-0.46:185:02Waxing Crescent10Fri
11Sat12:222.011:21-0.36:195:02Waxing Crescent11Sat
12Sun1:071.912:15-0.26:205:01First Quarter12Sun
13Mon1:511.71:04-0.16:215:01First Quarter13Mon
14Tue2:301.51:450.16:225:00First Quarter14Tue
15Wed3:011.22:150.36:225:00First Quarter15Wed
16Thu12:121.010:570.92:360.56:234:59Waxing Gibbous16Thu
17Fri10:010.710:131.07:130.72:450.66:244:59Waxing Gibbous17Fri
18Sat9:461.16:050.56:254:59Waxing Gibbous18Sat
19Sun9:251.26:110.26:264:58Waxing Gibbous19Sun
20Mon9:301.36:380.06:274:58Full Moon20Mon
21Tue9:511.47:11-0.16:274:57Full Moon21Tue
22Wed10:211.57:47-0.26:284:57Full Moon22Wed
23Thu10:541.58:27-0.36:294:57Full Moon23Thu
24Fri11:301.59:10-0.46:304:57Waning Gibbous24Fri
25Sat9:55-0.46:314:57Waning Gibbous25Sat
26Sun12:071.510:42-0.46:324:56Waning Gibbous26Sun
27Mon12:451.511:28-0.46:324:56Waning Gibbous27Mon
28Tue1:221.412:12-0.36:334:56Third Quarter28Tue
29Wed1:561.212:54-0.26:344:56Third Quarter29Wed
30Thu2:111.011:180.81:300.06:354:56Third Quarter30Thu
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 12:16 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 First 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