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 4h 59m at 5:39 pm (0.6 ft)
Next high tide (tomorrow) : 2:43 am (1.0 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 2093

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:321.511:350.06:157:34First Quarter1Fri
2Sat1:151.46:147:34First Quarter2Sat
3Sun2:011.312:250.16:137:35First Quarter3Sun
4Mon2:531.21:080.26:137:35First Quarter4Mon
5Tue4:041.11:410.36:127:36First Quarter5Tue
6Wed6:480.92:020.46:117:37Waxing Gibbous6Wed
7Thu9:500.910:010.82:030.63:330.76:107:37Waxing Gibbous7Thu
8Fri9:061.01:250.74:300.46:107:38Waxing Gibbous8Fri
9Sat8:551.25:240.26:097:39Full Moon9Sat
10Sun9:061.46:190.06:087:39Full Moon10Sun
11Mon9:321.67:17-0.26:087:40Full Moon11Mon
12Tue10:081.88:19-0.36:077:40Full Moon12Tue
13Wed10:501.89:22-0.46:067:41Waning Gibbous13Wed
14Thu11:361.910:26-0.36:067:42Waning Gibbous14Thu
15Fri12:251.811:27-0.36:057:42Waning Gibbous15Fri
16Sat1:131.66:057:43Third Quarter16Sat
17Sun1:581.412:21-0.16:047:43Third Quarter17Sun
18Mon2:231.11:040.16:047:44Third Quarter18Mon
19Tue11:420.91:260.36:037:45Waning Crescent19Tue
20Wed9:310.91:080.64:420.66:037:45Waning Crescent20Wed
21Thu8:401.15:070.36:027:46Waning Crescent21Thu
22Fri8:291.25:410.26:027:46Waning Crescent22Fri
23Sat8:391.46:160.06:017:47New Moon23Sat
24Sun8:591.56:50-0.16:017:48New Moon24Sun
25Mon9:231.67:24-0.16:017:48New Moon25Mon
26Tue9:501.68:01-0.26:007:49New Moon26Tue
27Wed10:201.68:40-0.26:007:49Waxing Crescent27Wed
28Thu10:531.69:21-0.16:007:50Waxing Crescent28Thu
29Fri11:271.610:02-0.16:007:50Waxing Crescent29Fri
30Sat12:011.510:410.05:597:51Waxing Crescent30Sat
31Sun12:351.411:150.15:597:51First Quarter31Sun
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 10:11 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 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