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

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 1h 51m at 9:17 pm (-0.1 ft)
Next high tide (tomorrow) : 11:47 am (1.2 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:141.41:240.56:367:18Third Quarter1Fri
2Sat3:001.52:120.46:367:17Third Quarter2Sat
3Sun3:571.62:580.36:377:16Third Quarter3Sun
4Mon5:011.73:410.26:377:15Waning Crescent4Mon
5Tue6:061.74:230.26:387:14Waning Crescent5Tue
6Wed7:091.85:030.26:387:12Waning Crescent6Wed
7Thu8:091.85:400.36:397:11Waning Crescent7Thu
8Fri9:071.76:150.46:397:10New Moon8Fri
9Sat10:071.66:430.66:407:09New Moon9Sat
10Sun11:131.56:550.86:407:08New Moon10Sun
11Mon1:030.912:391.33:570.96:251.06:417:06Waxing Crescent11Mon
12Tue12:061.16:400.86:417:05Waxing Crescent12Tue
13Wed12:071.49:040.66:427:04Waxing Crescent13Wed
14Thu12:381.611:040.56:427:03First Quarter14Thu
15Fri1:251.812:320.36:437:02First Quarter15Fri
16Sat2:231.91:410.26:437:00First Quarter16Sat
17Sun3:302.02:420.26:446:59First Quarter17Sun
18Mon4:461.93:360.26:446:58Waxing Gibbous18Mon
19Tue6:061.94:240.36:456:57Waxing Gibbous19Tue
20Wed7:221.85:040.56:456:55Waxing Gibbous20Wed
21Thu8:311.75:320.66:466:54Waxing Gibbous21Thu
22Fri9:331.65:450.86:466:53Full Moon22Fri
23Sat10:341.411:451.15:351.06:476:52Full Moon23Sat
24Sun11:421.311:081.33:511.04:541.16:476:51Full Moon24Sun
25Mon11:041.45:290.96:486:49Full Moon25Mon
26Tue11:171.56:520.96:486:48Waning Gibbous26Tue
27Wed11:401.68:120.86:496:47Waning Gibbous27Wed
28Thu9:340.76:496:46Waning Gibbous28Thu
29Fri12:121.710:530.66:506:45Waning Gibbous29Fri
30Sat12:521.812:020.56:506:43Third Quarter30Sat
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 4:32 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 spring phase. Tonight's moon is 88% 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 (88% 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