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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 5:08 pm (-0.6 ft)
Next high tide (tomorrow) : in 13h 53m at 6:28 am (2.0 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:591.33:02-0.35:486:15Waxing Gibbous1Tue
2Wed7:311.13:47-0.15:466:16Waxing Gibbous2Wed
3Thu9:041.04:180.15:456:16Waxing Gibbous3Thu
4Fri10:300.610:550.84:220.42:450.45:446:17Full Moon4Fri
5Sat9:250.83:260.64:330.35:436:17Full Moon5Sat
6Sun9:191.05:520.15:426:18Full Moon6Sun
7Mon9:351.26:590.05:416:18Waning Gibbous7Mon
8Tue10:011.38:01-0.15:406:19Waning Gibbous8Tue
9Wed10:311.49:03-0.15:386:19Waning Gibbous9Wed
10Thu11:071.510:06-0.15:376:20Waning Gibbous10Thu
11Fri11:491.511:09-0.15:366:21Third Quarter11Fri
12Sat12:381.55:356:21Third Quarter12Sat
13Sun1:361.412:10-0.15:346:22Third Quarter13Sun
14Mon2:461.31:03-0.15:336:22Third Quarter14Mon
15Tue4:081.21:490.05:326:23Waning Crescent15Tue
16Wed5:401.12:260.15:316:24Waning Crescent16Wed
17Thu7:171.02:510.35:306:24Waning Crescent17Thu
18Fri10:190.79:070.93:000.51:260.65:296:25Waning Crescent18Fri
19Sat8:570.82:410.63:170.45:286:25New Moon19Sat
20Sun8:331.04:340.25:276:26New Moon20Sun
21Mon8:401.35:440.05:266:26New Moon21Mon
22Tue9:051.56:53-0.25:256:27New Moon22Tue
23Wed9:421.78:04-0.35:246:28Waxing Crescent23Wed
24Thu10:261.89:17-0.45:236:28Waxing Crescent24Thu
25Fri11:171.910:29-0.45:226:29Waxing Crescent25Fri
26Sat12:131.811:37-0.45:216:29First Quarter26Sat
27Sun2:161.76:207:30First Quarter27Sun
28Mon3:251.51:38-0.26:197:31First Quarter28Mon
29Tue4:511.32:280.06:187:31Waxing Gibbous29Tue
30Wed7:031.03:040.26:177:32Waxing Gibbous30Wed
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 11:48 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 22% 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 Crescent (22% 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