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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 4:09 pm (0.0 ft)
Next high tide (tomorrow) : in 11h 27m at 5:52 am (1.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:270.94:16-0.46:225:57Waning Crescent1Tue
2Wed8:220.74:40-0.26:215:57Waning Crescent2Wed
3Thu9:140.64:52-0.16:205:58New Moon3Thu
4Fri11:420.210:090.54:460.11:530.26:195:59New Moon4Fri
5Sat10:370.411:170.44:200.23:520.26:185:59New Moon5Sat
6Sun10:230.53:240.35:200.16:176:00New Moon6Sun
7Mon10:310.76:450.06:166:01Waxing Crescent7Mon
8Tue10:520.88:16-0.16:156:01Waxing Crescent8Tue
9Wed11:240.99:48-0.26:146:02Waxing Crescent9Wed
10Thu12:041.011:06-0.36:136:02Waxing Crescent10Thu
11Fri12:531.16:116:03First Quarter11Fri
12Sat1:511.212:10-0.36:106:04First Quarter12Sat
13Sun3:591.21:05-0.47:097:04First Quarter13Sun
14Mon5:171.22:55-0.47:087:05First Quarter14Mon
15Tue6:401.23:42-0.47:077:05Waxing Gibbous15Tue
16Wed8:071.14:26-0.37:067:06Waxing Gibbous16Wed
17Thu9:390.95:05-0.17:057:07Waxing Gibbous17Thu
18Fri11:520.311:250.85:320.12:340.37:037:07Full Moon18Fri
19Sat10:240.55:230.44:530.17:027:08Full Moon19Sat
20Sun10:110.86:34-0.17:017:08Full Moon20Sun
21Mon10:371.18:08-0.27:007:09Waning Gibbous21Mon
22Tue11:181.39:38-0.46:597:10Waning Gibbous22Tue
23Wed12:071.411:04-0.46:587:10Waning Gibbous23Wed
24Thu1:001.56:567:11Third Quarter24Thu
25Fri1:581.412:22-0.46:557:11Third Quarter25Fri
26Sat3:011.31:29-0.36:547:12Third Quarter26Sat
27Sun4:131.22:25-0.26:537:12Third Quarter27Sun
28Mon5:381.03:11-0.16:527:13Waning Crescent28Mon
29Tue7:110.93:440.16:507:14Waning Crescent29Tue
30Wed8:440.84:030.26:497:14Waning Crescent30Wed
31Thu11:050.610:200.74:020.42:540.56:487:15Waning Crescent31Thu
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 11:00 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Southwest Pass, Mississippi River, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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