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

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 1h 30m at 4:36 pm (-0.3 ft)
Next high tide (tomorrow) : 6:33 am (1.6 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Mar 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:341.010:29-0.56:235:57Waxing Crescent1Mon
2Tue12:251.211:53-0.76:225:57First Quarter2Tue
3Wed1:231.36:215:58First Quarter3Wed
4Thu2:291.31:02-0.76:205:59First Quarter4Thu
5Fri3:421.22:01-0.76:185:59First Quarter5Fri
6Sat5:001.12:53-0.66:176:00Waxing Gibbous6Sat
7Sun6:131.03:37-0.56:166:00Waxing Gibbous7Sun
8Mon7:170.94:13-0.46:156:01Waxing Gibbous8Mon
9Tue8:140.84:38-0.26:146:02Waxing Gibbous9Tue
10Wed9:090.74:510.06:136:02Full Moon10Wed
11Thu11:290.310:110.64:440.11:530.36:126:03Full Moon11Thu
12Fri10:170.411:360.54:090.33:560.26:116:04Full Moon12Fri
13Sat10:010.62:520.45:240.16:106:04Full Moon13Sat
14Sun10:090.86:450.06:086:05Waning Gibbous14Sun
15Mon10:311.08:05-0.16:076:05Waning Gibbous15Mon
16Tue11:021.19:27-0.26:066:06Waning Gibbous16Tue
17Wed11:431.210:44-0.36:056:07Waning Gibbous17Wed
18Thu12:321.311:52-0.46:046:07Third Quarter18Thu
19Fri1:321.46:036:08Third Quarter19Fri
20Sat2:421.412:53-0.56:016:08Third Quarter20Sat
21Sun4:021.41:48-0.56:006:09Third Quarter21Sun
22Mon5:291.32:39-0.55:596:09Waning Crescent22Mon
23Tue7:001.23:26-0.35:586:10Waning Crescent23Tue
24Wed8:401.04:07-0.15:576:11Waning Crescent24Wed
25Thu10:330.410:430.84:350.21:470.35:566:11New Moon25Thu
26Fri8:560.64:110.64:050.15:546:12New Moon26Fri
27Sat8:491.05:44-0.15:536:12New Moon27Sat
28Sun9:201.37:13-0.35:526:13Waxing Crescent28Sun
29Mon10:041.58:38-0.45:516:13Waxing Crescent29Mon
30Tue10:531.69:58-0.55:506:14Waxing Crescent30Tue
31Wed11:461.611:13-0.45:496:15Waxing Crescent31Wed
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 11:34 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 transitional phase. Tonight's moon is 79% 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 shifting between spring and neap.

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 Waxing Gibbous (79% illuminated). This places Southwest Pass, Mississippi River, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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