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

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 3h 36m at 4:13 pm (0.3 ft)
Next high tide (tomorrow) : 5:52 am (1.1 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:561.22:57-0.76:225:57Waxing Gibbous1Sat
2Sun6:091.13:45-0.76:215:58Waxing Gibbous2Sun
3Mon7:121.04:26-0.56:205:58Waxing Gibbous3Mon
4Tue8:071.05:00-0.46:195:59Waxing Gibbous4Tue
5Wed8:560.85:24-0.26:186:00Full Moon5Wed
6Thu9:440.75:35-0.16:166:00Full Moon6Thu
7Fri10:390.65:270.16:156:01Full Moon7Fri
8Sat10:590.411:590.44:490.34:280.26:146:02Full Moon8Sat
9Sun11:440.64:250.47:140.17:137:02Waning Gibbous9Sun
10Mon11:540.88:560.07:127:03Waning Gibbous10Mon
11Tue12:180.910:31-0.17:117:03Waning Gibbous11Tue
12Wed12:531.111:51-0.37:107:04Waning Gibbous12Wed
13Thu1:381.27:097:05Third Quarter13Thu
14Fri2:351.312:59-0.47:077:05Third Quarter14Fri
15Sat3:431.31:59-0.57:067:06Third Quarter15Sat
16Sun5:021.42:56-0.67:057:06Third Quarter16Sun
17Mon6:241.43:49-0.67:047:07Waning Crescent17Mon
18Tue7:461.34:39-0.57:037:08Waning Crescent18Tue
19Wed9:091.25:26-0.47:027:08Waning Crescent19Wed
20Thu10:391.06:07-0.17:007:09New Moon20Thu
21Fri11:510.36:320.23:340.26:597:09New Moon21Fri
22Sat12:390.810:28 AM0.65:490.65:590.06:587:10New Moon22Sat
23Sun10:341.07:50-0.26:577:10Waxing Crescent23Sun
24Mon11:111.39:29-0.36:567:11Waxing Crescent24Mon
25Tue11:571.510:57-0.56:557:12Waxing Crescent25Tue
26Wed12:491.66:537:12First Quarter26Wed
27Thu1:451.612:16-0.56:527:13First Quarter27Thu
28Fri2:481.51:26-0.56:517:13First Quarter28Fri
29Sat4:001.42:27-0.46:507:14First Quarter29Sat
30Sun5:221.33:19-0.36:497:14Waxing Gibbous30Sun
31Mon6:471.14:01-0.16:487:15Waxing Gibbous31Mon
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 11:02 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Southwest Pass, Mississippi River, LA in a neap tide cycle, so tidal ranges are near their weekly minimum 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