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

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 7:57 pm (0.3 ft)
Next high tide : in 35m at 11:19 am (1.2 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:100.810:57-0.26:215:57Waning Gibbous1Tue
2Wed12:520.96:205:58Third Quarter2Wed
3Thu1:410.912:10-0.36:195:59Third Quarter3Thu
4Fri2:380.91:05-0.36:185:59Third Quarter4Fri
5Sat3:440.91:52-0.36:176:00Third Quarter5Sat
6Sun4:550.92:34-0.36:166:01Waning Crescent6Sun
7Mon6:050.93:12-0.26:156:01Waning Crescent7Mon
8Tue7:070.83:45-0.26:136:02Waning Crescent8Tue
9Wed8:040.84:11-0.16:126:02Waning Crescent9Wed
10Thu8:570.74:270.06:116:03New Moon10Thu
11Fri9:520.64:300.16:106:04New Moon11Fri
12Sat10:340.410:560.54:180.33:230.36:096:04New Moon12Sat
13Sun11:240.64:470.45:520.27:087:05New Moon13Sun
14Mon11:340.77:200.17:077:05Waxing Crescent14Mon
15Tue11:570.98:550.07:057:06Waxing Crescent15Tue
16Wed12:301.010:30-0.17:047:07Waxing Crescent16Wed
17Thu1:111.111:54-0.27:037:07Waxing Crescent17Thu
18Fri2:031.27:027:08First Quarter18Fri
19Sat3:051.21:05-0.37:017:08First Quarter19Sat
20Sun4:221.22:06-0.37:007:09First Quarter20Sun
21Mon5:521.13:01-0.36:597:10Waxing Gibbous21Mon
22Tue7:281.13:50-0.26:577:10Waxing Gibbous22Tue
23Wed9:020.94:320.06:567:11Waxing Gibbous23Wed
24Thu10:370.85:000.26:557:11Full Moon24Thu
25Fri10:570.65:030.44:210.36:547:12Full Moon25Fri
26Sat12:310.710:28 AM0.74:120.65:490.26:537:12Full Moon26Sat
27Sun10:350.97:050.16:517:13Full Moon27Sun
28Mon10:581.18:170.06:507:14Waning Gibbous28Mon
29Tue11:301.29:280.06:497:14Waning Gibbous29Tue
30Wed12:061.210:370.06:487:15Waning Gibbous30Wed
31Thu12:441.311:430.06:477:15Waning Gibbous31Thu
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 3:38 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 91% 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 (91% 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