Tides Today & Tomorrow in Southwest Pass, Mississippi River, LA

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 4h 38m at 8:26 am (0.7 ft)
Next high tide : 12:12 pm (0.7 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Oct 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:411.611:071.14:270.96:506:43Waning Crescent1Mon
2Tue10:371.49:411.32:151.04:121.16:516:42New Moon2Tue
3Wed9:251.54:150.86:516:41New Moon3Wed
4Thu9:431.75:400.76:526:40New Moon4Thu
5Fri10:151.96:530.56:536:39New Moon5Fri
6Sat10:522.08:030.56:536:37Waxing Crescent6Sat
7Sun11:332.09:110.46:546:36Waxing Crescent7Sun
8Mon10:180.46:546:35Waxing Crescent8Mon
9Tue12:152.011:230.46:556:34Waxing Crescent9Tue
10Wed1:011.912:220.56:556:33First Quarter10Wed
11Thu1:521.81:140.56:566:32First Quarter11Thu
12Fri2:501.71:580.66:576:31First Quarter12Fri
13Sat4:031.62:320.76:576:30First Quarter13Sat
14Sun5:431.52:530.96:586:29Waxing Gibbous14Sun
15Mon7:381.49:591.22:531.06:586:27Waxing Gibbous15Mon
16Tue9:371.39:021.32:281.12:201.16:596:26Waxing Gibbous16Tue
17Wed8:501.53:470.97:006:25Waxing Gibbous17Wed
18Thu9:011.64:470.87:006:24Full Moon18Thu
19Fri9:241.85:420.67:016:23Full Moon19Fri
20Sat9:551.96:370.57:026:22Full Moon20Sat
21Sun10:332.07:370.47:026:21Waning Gibbous21Sun
22Mon11:152.18:410.37:036:20Waning Gibbous22Mon
23Tue9:480.27:046:20Waning Gibbous23Tue
24Wed12:022.110:550.27:046:19Waning Gibbous24Wed
25Thu12:542.011:580.37:056:18Third Quarter25Thu
26Fri1:511.912:530.47:066:17Third Quarter26Fri
27Sat2:571.71:390.57:066:16Third Quarter27Sat
28Sun3:411.510:121.21:080.86:075:15Waning Crescent28Sun
29Mon6:571.27:571.212:341.11:011.06:085:14Waning Crescent29Mon
30Tue7:151.42:270.96:085:13Waning Crescent30Tue
31Wed7:171.63:310.66:095:13Waning Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

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What time does the tide turn (slack tide) in Southwest Pass, Mississippi River, LA today?

Slack tide in Southwest Pass, Mississippi River, LA is approximately 10:19 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 Southwest Pass, Mississippi River, LA?

Southwest Pass, Mississippi River, LA is currently in a transitional phase. Tonight's moon is 75% 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 Southwest Pass, Mississippi River, 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 Southwest Pass, Mississippi River, LA?

Tide predictions for Southwest Pass, Mississippi River, 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 Southwest Pass, Mississippi River, LA?

Tide data for Southwest Pass, Mississippi River, LA is sourced from NOAA Station #8760959. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8760959.

What is the moon phase in Southwest Pass, Mississippi River, LA tonight?

Tonight the moon over Southwest Pass, Mississippi River, LA is Waning Gibbous (75% illuminated). This places Southwest Pass, Mississippi River, 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