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

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 36m at 8:26 am (0.7 ft)
Next high tide : 12:12 pm (0.7 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - May 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:071.46:167:33Third Quarter1Tue
2Wed1:441.212:030.26:157:34Third Quarter2Wed
3Thu2:161.112:340.36:147:34Third Quarter3Thu
4Fri12:540.912:500.46:137:35Third Quarter4Fri
5Sat9:110.98:370.712:390.63:410.76:127:35Waning Crescent5Sat
6Sun8:121.04:040.56:127:36Waning Crescent6Sun
7Mon7:591.24:430.36:117:37Waning Crescent7Mon
8Tue8:111.45:260.06:107:37Waning Crescent8Tue
9Wed8:361.66:15-0.16:097:38New Moon9Wed
10Thu9:111.77:07-0.36:097:38New Moon10Thu
11Fri9:511.88:03-0.36:087:39New Moon11Fri
12Sat10:361.99:02-0.46:077:40Waxing Crescent12Sat
13Sun11:241.910:01-0.36:077:40Waxing Crescent13Sun
14Mon12:121.710:56-0.26:067:41Waxing Crescent14Mon
15Tue12:581.611:430.06:057:42First Quarter15Tue
16Wed1:361.36:057:42First Quarter16Wed
17Thu1:111.012:140.36:047:43First Quarter17Thu
18Fri9:130.97:320.712:090.55:280.76:047:43First Quarter18Fri
19Sat7:491.04:220.46:037:44Waxing Gibbous19Sat
20Sun7:291.24:530.26:037:45Waxing Gibbous20Sun
21Mon7:401.45:300.06:027:45Waxing Gibbous21Mon
22Tue8:051.66:07-0.16:027:46Full Moon22Tue
23Wed8:351.66:43-0.26:017:46Full Moon23Wed
24Thu9:071.77:19-0.26:017:47Full Moon24Thu
25Fri9:401.77:55-0.26:017:47Full Moon25Fri
26Sat10:131.68:32-0.26:007:48Waning Gibbous26Sat
27Sun10:471.69:08-0.16:007:49Waning Gibbous27Sun
28Mon11:201.59:430.06:007:49Waning Gibbous28Mon
29Tue11:511.410:110.15:597:50Waning Gibbous29Tue
30Wed12:171.310:300.25:597:50Waning Gibbous30Wed
31Thu12:271.110:310.35:597:51Third Quarter31Thu
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 10:19 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 transitional phase. Tonight's moon is 75% 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 shifting between spring and neap.

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 (75% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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