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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 2h 36m at 7:21 pm (0.5 ft)
Next high tide (tomorrow) : 3:27 am (0.8 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Oct 1957

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:051.82:170.56:506:43First Quarter1Tue
2Wed4:191.72:570.66:516:42First Quarter2Wed
3Thu5:461.63:260.86:516:41Waxing Gibbous3Thu
4Fri7:191.53:430.96:526:40Waxing Gibbous4Fri
5Sat8:461.410:251.23:411.06:526:39Waxing Gibbous5Sat
6Sun10:151.39:391.32:491.13:131.16:536:38Waxing Gibbous6Sun
7Mon9:291.44:051.06:546:37Full Moon7Mon
8Tue9:391.65:050.96:546:35Full Moon8Tue
9Wed10:001.76:010.86:556:34Full Moon9Wed
10Thu10:271.86:560.76:556:33Full Moon10Thu
11Fri11:001.97:550.66:566:32Waning Gibbous11Fri
12Sat11:381.98:580.56:566:31Waning Gibbous12Sat
13Sun10:050.56:576:30Waning Gibbous13Sun
14Mon12:222.011:100.46:586:29Waning Gibbous14Mon
15Tue1:111.912:110.46:586:28Third Quarter15Tue
16Wed2:091.91:060.46:596:27Third Quarter16Wed
17Thu3:221.81:540.57:006:26Third Quarter17Thu
18Fri5:051.62:340.77:006:25Waning Crescent18Fri
19Sat7:241.410:071.22:590.97:016:24Waning Crescent19Sat
20Sun9:591.39:001.32:241.02:471.17:016:23Waning Crescent20Sun
21Mon8:441.53:570.87:026:22New Moon21Mon
22Tue9:001.85:090.67:036:21New Moon22Tue
23Wed9:331.96:160.47:036:20New Moon23Wed
24Thu10:122.07:210.37:046:19New Moon24Thu
25Fri10:552.18:250.27:056:18Waxing Crescent25Fri
26Sat11:382.09:290.27:056:17Waxing Crescent26Sat
27Sun11:211.99:310.36:065:16Waxing Crescent27Sun
28Mon10:280.46:075:15First Quarter28Mon
29Tue12:031.811:160.56:085:14First Quarter29Tue
30Wed12:441.611:540.66:085:14First Quarter30Wed
31Thu1:211.412:190.76:095:13First Quarter31Thu
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 11:24 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 Southwest Pass, Mississippi River, LA?

Southwest Pass, Mississippi River, LA is currently in a spring phase. Tonight's moon is 84% 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 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 (84% illuminated). This places Southwest Pass, Mississippi River, 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