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

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 2h 57m at 7:26 pm (-0.4 ft)
Next high tide (tomorrow) : 9:37 am (1.6 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:500.73:330.54:040.45:476:15New Moon1Tue
2Wed9:330.95:170.35:466:16New Moon2Wed
3Thu9:371.06:210.15:456:16New Moon3Thu
4Fri9:541.27:230.05:446:17Waxing Crescent4Fri
5Sat10:201.38:270.05:426:17Waxing Crescent5Sat
6Sun11:541.410:35-0.16:417:18Waxing Crescent6Sun
7Mon12:361.511:43-0.16:407:19Waxing Crescent7Mon
8Tue1:251.56:397:19First Quarter8Tue
9Wed2:241.512:46-0.26:387:20First Quarter9Wed
10Thu3:341.51:44-0.26:377:20First Quarter10Thu
11Fri4:561.42:35-0.26:367:21First Quarter11Fri
12Sat6:311.33:22-0.16:357:21Waxing Gibbous12Sat
13Sun8:141.24:030.16:347:22Waxing Gibbous13Sun
14Mon10:131.04:340.36:327:23Waxing Gibbous14Mon
15Tue10:130.74:400.64:060.46:317:23Full Moon15Tue
16Wed1:130.99:31 AM1.03:140.95:420.16:307:24Full Moon16Wed
17Thu9:401.37:05-0.16:297:24Full Moon17Thu
18Fri10:141.68:24-0.36:287:25Waning Gibbous18Fri
19Sat10:581.89:41-0.46:277:26Waning Gibbous19Sat
20Sun11:481.910:56-0.46:267:26Waning Gibbous20Sun
21Mon12:411.96:257:27Waning Gibbous21Mon
22Tue1:381.712:07-0.46:247:27Third Quarter22Tue
23Wed2:381.61:11-0.36:237:28Third Quarter23Wed
24Thu3:451.42:05-0.16:227:28Third Quarter24Thu
25Fri5:071.22:460.16:217:29Waning Crescent25Fri
26Sat7:071.03:100.36:207:30Waning Crescent26Sat
27Sun11:060.89:350.83:090.53:260.76:197:30Waning Crescent27Sun
28Mon9:440.92:260.74:400.56:197:31Waning Crescent28Mon
29Tue9:161.15:300.46:187:32New Moon29Tue
30Wed9:131.26:130.26:177:32New Moon30Wed
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 2:31 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 100% 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 Full Moon (100% 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