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 6h 40m 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 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:010.93:040.16:467:16Waxing Gibbous1Fri
2Sat7:440.93:310.26:457:16Waxing Gibbous2Sat
3Sun9:210.83:430.46:447:17Waxing Gibbous3Sun
4Mon10:100.711:040.73:330.53:350.56:437:17Waxing Gibbous4Mon
5Tue9:380.82:490.64:410.46:427:18Full Moon5Tue
6Wed9:360.95:370.36:417:18Full Moon6Wed
7Thu9:511.16:300.26:397:19Full Moon7Thu
8Fri10:151.27:240.16:387:20Full Moon8Fri
9Sat10:451.38:230.06:377:20Waning Gibbous9Sat
10Sun11:201.49:26-0.16:367:21Waning Gibbous10Sun
11Mon12:011.510:31-0.16:357:21Waning Gibbous11Mon
12Tue12:461.511:36-0.16:347:22Waning Gibbous12Tue
13Wed1:391.56:337:22Third Quarter13Wed
14Thu2:391.412:37-0.16:327:23Third Quarter14Thu
15Fri3:581.21:310.06:317:24Third Quarter15Fri
16Sat6:011.12:170.16:307:24Waning Crescent16Sat
17Sun8:460.92:500.46:297:25Waning Crescent17Sun
18Mon9:340.82:550.63:400.56:287:25Waning Crescent18Mon
19Tue8:551.04:530.26:277:26Waning Crescent19Tue
20Wed8:571.25:570.06:267:26New Moon20Wed
21Thu9:211.46:57-0.16:257:27New Moon21Thu
22Fri9:561.67:55-0.26:247:28New Moon22Fri
23Sat10:341.78:53-0.26:237:28Waxing Crescent23Sat
24Sun11:151.69:49-0.16:227:29Waxing Crescent24Sun
25Mon11:551.610:430.06:217:29Waxing Crescent25Mon
26Tue12:341.511:330.16:207:30Waxing Crescent26Tue
27Wed1:131.46:197:31First Quarter27Wed
28Thu1:481.212:160.26:187:31First Quarter28Thu
29Fri2:141.112:500.36:177:32First Quarter29Fri
30Sat12:400.91:090.46:167:33First Quarter30Sat
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