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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 7:21 pm (0.5 ft)
Next high tide : in 5h 31m at 11:53 am (1.0 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 - Sep 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:181.11:060.96:320.84:010.96:357:20Waning Gibbous1Mon
2Tue12:261.28:330.86:357:18Waning Gibbous2Tue
3Wed12:491.310:520.76:367:17Waning Gibbous3Wed
4Thu1:231.412:230.66:367:16Third Quarter4Thu
5Fri2:071.51:210.56:377:15Third Quarter5Fri
6Sat3:011.62:080.46:377:14Third Quarter6Sat
7Sun4:031.62:520.36:387:13Third Quarter7Sun
8Mon5:111.73:330.36:387:11Waning Crescent8Mon
9Tue6:211.74:120.36:397:10Waning Crescent9Tue
10Wed7:301.74:490.46:397:09Waning Crescent10Wed
11Thu8:401.65:220.56:407:08Waning Crescent11Thu
12Fri9:521.55:470.76:407:07New Moon12Fri
13Sat11:131.411:191.15:480.96:417:05New Moon13Sat
14Sun1:041.24:410.84:551.16:417:04New Moon14Sun
15Mon11:231.56:370.76:427:03Waxing Crescent15Mon
16Tue8:290.66:427:02Waxing Crescent16Tue
17Wed12:011.710:160.46:437:01Waxing Crescent17Wed
18Thu12:491.811:480.36:436:59First Quarter18Thu
19Fri1:461.91:030.36:446:58First Quarter19Fri
20Sat2:501.92:050.36:446:57First Quarter20Sat
21Sun4:031.82:580.46:456:56First Quarter21Sun
22Mon5:251.73:420.56:456:55Waxing Gibbous22Mon
23Tue6:481.64:140.76:466:53Waxing Gibbous23Tue
24Wed8:051.54:330.86:466:52Waxing Gibbous24Wed
25Thu9:151.411:251.14:340.96:476:51Waxing Gibbous25Thu
26Fri10:241.310:311.22:381.14:131.16:476:50Full Moon26Fri
27Sat11:421.210:181.34:101.03:261.16:486:49Full Moon27Sat
28Sun10:231.55:170.96:496:47Full Moon28Sun
29Mon10:401.66:190.86:496:46Full Moon29Mon
30Tue11:041.77:210.86:506:45Waning Gibbous30Tue
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 3:37 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