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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 5h 09m at 7:21 pm (0.5 ft)
Next high tide (tomorrow) : 3:27 am (0.8 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:201.04:270.16:467:16Waxing Gibbous1Sun
2Mon11:520.511:040.94:580.32:460.56:457:16Full Moon2Mon
3Tue10:420.75:050.54:420.36:447:17Full Moon3Tue
4Wed1:270.810:21 AM0.94:050.76:130.16:437:17Full Moon4Wed
5Thu10:341.17:390.06:427:18Waning Gibbous5Thu
6Fri11:061.39:03-0.16:417:18Waning Gibbous6Fri
7Sat11:481.410:24-0.26:397:19Waning Gibbous7Sat
8Sun12:351.511:39-0.26:387:20Waning Gibbous8Sun
9Mon1:251.56:377:20Third Quarter9Mon
10Tue2:181.412:46-0.16:367:21Third Quarter10Tue
11Wed3:171.21:410.06:357:21Third Quarter11Wed
12Thu4:311.12:270.16:347:22Third Quarter12Thu
13Fri6:191.03:000.26:337:22Waning Crescent13Fri
14Sat8:170.93:200.46:327:23Waning Crescent14Sat
15Sun10:550.810:060.83:210.53:340.66:317:24Waning Crescent15Sun
16Mon10:050.82:590.64:340.56:307:24Waning Crescent16Mon
17Tue9:481.05:230.46:297:25New Moon17Tue
18Wed9:481.16:090.36:287:25New Moon18Wed
19Thu10:011.26:540.26:277:26New Moon19Thu
20Fri10:221.37:420.16:267:27New Moon20Fri
21Sat10:491.48:320.16:257:27Waxing Crescent21Sat
22Sun11:211.49:270.16:247:28Waxing Crescent22Sun
23Mon11:571.510:240.06:237:28Waxing Crescent23Mon
24Tue12:381.511:220.06:227:29Waxing Crescent24Tue
25Wed1:241.56:217:30First Quarter25Wed
26Thu2:181.412:170.06:207:30First Quarter26Thu
27Fri3:281.31:090.16:197:31First Quarter27Fri
28Sat5:231.11:540.26:187:31Waxing Gibbous28Sat
29Sun11:420.88:110.92:290.41:430.86:177:32Waxing Gibbous29Sun
30Mon9:530.911:170.82:450.63:360.66:167:33Waxing Gibbous30Mon
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 11:24 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 84% 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 (84% 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