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

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 4h 12m at 9:17 pm (-0.1 ft)
Next high tide (tomorrow) : 11:47 am (1.2 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:03 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:481.24:510.15:597:51Waning Crescent1Sun
2Mon7:551.45:30-0.15:597:52Waning Crescent2Mon
3Tue8:181.56:11-0.25:587:52New Moon3Tue
4Wed8:491.66:53-0.35:587:53New Moon4Wed
5Thu9:231.67:33-0.35:587:53New Moon5Thu
6Fri9:571.68:11-0.25:587:54New Moon6Fri
7Sat10:311.68:47-0.25:587:54Waxing Crescent7Sat
8Sun11:031.59:21-0.15:587:55Waxing Crescent8Sun
9Mon11:321.49:500.05:587:55Waxing Crescent9Mon
10Tue11:551.210:120.15:587:55Waxing Crescent10Tue
11Wed12:051.110:220.25:587:56First Quarter11Wed
12Thu11:280.910:100.45:587:56First Quarter12Thu
13Fri9:040.99:140.45:587:57First Quarter13Fri
14Sat7:400.96:090.45:587:57First Quarter14Sat
15Sun7:141.04:500.35:587:57Waxing Gibbous15Sun
16Mon7:161.24:560.15:587:58Waxing Gibbous16Mon
17Tue7:331.35:20-0.15:587:58Waxing Gibbous17Tue
18Wed8:011.45:52-0.25:597:58Waxing Gibbous18Wed
19Thu8:341.56:30-0.35:597:58Full Moon19Thu
20Fri9:111.67:11-0.45:597:59Full Moon20Fri
21Sat9:511.77:54-0.45:597:59Full Moon21Sat
22Sun10:321.68:38-0.35:597:59Waning Gibbous22Sun
23Mon11:141.59:20-0.26:007:59Waning Gibbous23Mon
24Tue11:531.49:56-0.16:007:59Waning Gibbous24Tue
25Wed12:211.110:160.16:008:00Waning Gibbous25Wed
26Thu11:440.910:020.36:018:00Third Quarter26Thu
27Fri7:500.87:470.46:018:00Third Quarter27Fri
28Sat6:430.94:070.26:018:00Third Quarter28Sat
29Sun6:341.14:210.06:028:00Waning Crescent29Sun
30Mon6:521.34:55-0.26:028:00Waning Crescent30Mon
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 4:32 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 88% 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 (88% 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