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 9h 12m 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 - Mar 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:281.01:45-0.56:225:57First Quarter1Tue
2Wed4:400.92:32-0.46:215:58Waxing Gibbous2Wed
3Thu5:500.93:13-0.46:205:58Waxing Gibbous3Thu
4Fri6:550.83:47-0.36:195:59Waxing Gibbous4Fri
5Sat7:520.84:13-0.26:176:00Waxing Gibbous5Sat
6Sun8:450.74:31-0.16:166:00Full Moon6Sun
7Mon9:380.64:360.16:156:01Full Moon7Mon
8Tue10:400.310:350.54:230.22:570.26:146:02Full Moon8Tue
9Wed10:170.511:520.43:480.34:260.26:136:02Full Moon9Wed
10Thu10:210.62:430.45:480.16:126:03Waning Gibbous10Thu
11Fri10:400.87:130.06:116:03Waning Gibbous11Fri
12Sat11:080.98:45-0.16:106:04Waning Gibbous12Sat
13Sun12:441.011:12-0.27:087:05Waning Gibbous13Sun
14Mon1:291.17:077:05Third Quarter14Mon
15Tue2:231.212:26-0.37:067:06Third Quarter15Tue
16Wed3:291.21:28-0.37:057:06Third Quarter16Wed
17Thu4:471.22:25-0.47:047:07Third Quarter17Thu
18Fri6:161.13:16-0.37:037:08Waning Crescent18Fri
19Sat7:511.14:04-0.27:027:08Waning Crescent19Sat
20Sun9:270.94:45-0.17:007:09Waning Crescent20Sun
21Mon11:520.411:130.85:140.22:380.36:597:09New Moon21Mon
22Tue10:300.65:090.44:450.26:587:10New Moon22Tue
23Wed10:130.86:180.06:577:10New Moon23Wed
24Thu10:331.07:44-0.16:567:11Waxing Crescent24Thu
25Fri11:091.29:06-0.26:547:12Waxing Crescent25Fri
26Sat11:501.310:26-0.26:537:12Waxing Crescent26Sat
27Sun12:361.311:41-0.26:527:13Waxing Crescent27Sun
28Mon1:241.36:517:13First Quarter28Mon
29Tue2:161.212:46-0.26:507:14First Quarter29Tue
30Wed3:151.21:41-0.16:497:14First Quarter30Wed
31Thu4:281.02:270.06:477:15First Quarter31Thu
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