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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 9h 08m at 9:22 pm (0.1 ft)
Next high tide (tomorrow) : 12:03 pm (1.0 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:04 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Feb 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:130.84:32-0.66:465:36Waxing Gibbous1Thu
2Fri7:550.85:03-0.66:455:36Full Moon2Fri
3Sat8:330.85:30-0.66:455:37Full Moon3Sat
4Sun9:090.75:53-0.56:445:38Full Moon4Sun
5Mon9:430.66:09-0.46:445:39Full Moon5Mon
6Tue10:170.56:16-0.36:435:40Waning Gibbous6Tue
7Wed10:510.46:13-0.26:425:41Waning Gibbous7Wed
8Thu1:390.25:55-0.15:380.16:425:41Waning Gibbous8Thu
9Fri1:280.35:090.06:415:42Waning Gibbous9Fri
10Sat1:440.52:460.06:405:43Third Quarter10Sat
11Sun2:180.612:19-0.26:395:44Third Quarter11Sun
12Mon3:060.81:00-0.46:395:44Third Quarter12Mon
13Tue4:050.91:47-0.66:385:45Third Quarter13Tue
14Wed5:101.02:36-0.76:375:46Waning Crescent14Wed
15Thu6:181.13:25-0.86:365:47Waning Crescent15Thu
16Fri7:241.04:13-0.86:355:47Waning Crescent16Fri
17Sat8:271.04:59-0.76:345:48New Moon17Sat
18Sun9:290.85:40-0.56:335:49New Moon18Sun
19Mon10:310.66:11-0.36:335:50New Moon19Mon
20Tue11:380.46:18-0.16:325:50Waxing Crescent20Tue
21Wed11:580.35:390.15:570.06:315:51Waxing Crescent21Wed
22Thu1:220.211:59 AM0.53:320.28:430.06:305:52Waxing Crescent22Thu
23Fri12:250.611:06-0.26:295:52Waxing Crescent23Fri
24Sat1:040.76:285:53First Quarter24Sat
25Sun1:510.812:21-0.36:275:54First Quarter25Sun
26Mon2:450.81:14-0.36:265:55First Quarter26Mon
27Tue3:480.91:59-0.46:255:55First Quarter27Tue
28Wed4:540.92:40-0.46:245:56Waxing Gibbous28Wed
29Thu5:590.93:18-0.46:235:57Waxing Gibbous29Thu
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 4:42 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 80% 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 Waning Gibbous (80% 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