Tides Today & Tomorrow in Grand Pass, LA

TIDE TIMES for Monday, July 27, 2026
The tide is currently rising in Grand Pass, LA.
Next low tide : 8:52 pm (-0.1 ft)
Next high tide : in 8h 53m at 9:59 am (1.9 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:12 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8760668
Common Questions About Tides

Grand Pass, LA Tides - May 1969

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:301.68:40-0.26:137:34Full Moon1Thu
2Fri11:031.99:36-0.46:127:34Full Moon2Fri
3Sat11:442.110:35-0.56:117:35Full Moon3Sat
4Sun12:322.211:37-0.56:107:36Waning Gibbous4Sun
5Mon1:242.26:107:36Waning Gibbous5Mon
6Tue2:152.112:40-0.56:097:37Waning Gibbous6Tue
7Wed3:052.01:40-0.36:087:38Third Quarter7Wed
8Thu3:501.72:34-0.16:077:38Third Quarter8Thu
9Fri4:261.43:160.16:077:39Third Quarter9Fri
10Sat1:081.13:370.46:067:40Waning Crescent10Sat
11Sun11:211.13:350.77:280.76:057:40Waning Crescent11Sun
12Mon10:291.27:160.46:047:41Waning Crescent12Mon
13Tue10:001.57:400.16:047:42Waning Crescent13Tue
14Wed10:031.68:100.06:037:42New Moon14Wed
15Thu10:251.88:45-0.26:027:43New Moon15Thu
16Fri10:551.99:23-0.26:027:44New Moon16Fri
17Sat11:311.910:05-0.26:017:44New Moon17Sat
18Sun12:111.910:52-0.26:017:45Waxing Crescent18Sun
19Mon12:541.911:40-0.26:007:45Waxing Crescent19Mon
20Tue1:381.96:007:46Waxing Crescent20Tue
21Wed2:211.812:27-0.15:597:47Waxing Crescent21Wed
22Thu3:011.61:110.05:597:47First Quarter22Thu
23Fri3:381.51:510.15:587:48First Quarter23Fri
24Sat4:091.22:240.35:587:49First Quarter24Sat
25Sun11:461.02:480.55:577:49First Quarter25Sun
26Mon10:191.12:500.76:000.65:577:50Waxing Gibbous26Mon
27Tue9:101.36:290.25:577:50Waxing Gibbous27Tue
28Wed8:571.57:10-0.15:567:51Waxing Gibbous28Wed
29Thu9:191.87:56-0.45:567:51Waxing Gibbous29Thu
30Fri9:562.18:47-0.65:567:52Full Moon30Fri
31Sat10:402.29:42-0.75:567:53Full Moon31Sat
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 3:25 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 97% 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 Full Moon (97% 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