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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 9:22 pm (0.1 ft)
Next high tide : in 34m at 11:47 am (1.2 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:580.83:52-0.36:225:57Waxing Gibbous1Fri
2Sat7:510.84:21-0.26:215:58Waxing Gibbous2Sat
3Sun8:400.74:42-0.16:205:59Full Moon3Sun
4Mon9:280.74:540.06:185:59Full Moon4Mon
5Tue11:410.310:200.64:530.12:080.26:176:00Full Moon5Tue
6Wed11:010.411:250.44:360.24:030.26:166:00Full Moon6Wed
7Thu10:580.54:000.35:430.16:156:01Waning Gibbous7Thu
8Fri11:130.77:300.06:146:02Waning Gibbous8Fri
9Sat11:400.89:21-0.16:136:02Waning Gibbous9Sat
10Sun12:181.010:53-0.26:126:03Waning Gibbous10Sun
11Mon1:071.16:116:03Third Quarter11Mon
12Tue2:071.112:06-0.36:106:04Third Quarter12Tue
13Wed3:201.21:08-0.46:086:05Third Quarter13Wed
14Thu4:441.12:04-0.46:076:05Waning Crescent14Thu
15Fri6:121.12:54-0.46:066:06Waning Crescent15Fri
16Sat7:381.03:40-0.26:056:06Waning Crescent16Sat
17Sun9:020.84:160.06:046:07Waning Crescent17Sun
18Mon11:120.410:310.74:350.22:120.36:036:08New Moon18Mon
19Tue10:050.54:210.44:070.26:016:08New Moon19Tue
20Wed12:320.69:53 AM0.72:570.55:360.16:006:09New Moon20Wed
21Thu10:090.96:590.05:596:09Waxing Crescent21Thu
22Fri10:371.08:190.05:586:10Waxing Crescent22Fri
23Sat11:121.19:37-0.15:576:11Waxing Crescent23Sat
24Sun11:501.210:48-0.15:566:11Waxing Crescent24Sun
25Mon12:331.211:50-0.15:546:12First Quarter25Mon
26Tue1:231.15:536:12First Quarter26Tue
27Wed2:231.112:440.05:526:13First Quarter27Wed
28Thu3:371.01:310.05:516:13First Quarter28Thu
29Fri5:061.02:100.15:506:14Waxing Gibbous29Fri
30Sat6:350.92:410.25:496:14Waxing Gibbous30Sat
31Sun7:580.83:010.35:476:15Waxing Gibbous31Sun
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 4:34 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 80% 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 (80% 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