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

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 6h 20m at 7:57 pm (0.3 ft)
Next high tide (tomorrow) : 11:53 am (1.0 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:000.910:240.45:597:52Third Quarter1Wed
2Thu8:290.99:060.55:597:52Third Quarter2Thu
3Fri7:341.04:470.45:597:53Waning Crescent3Fri
4Sat7:231.14:370.25:587:53Waning Crescent4Sat
5Sun7:331.35:020.05:587:54Waning Crescent5Sun
6Mon7:571.55:39-0.25:587:54Waning Crescent6Mon
7Tue8:301.66:22-0.35:587:55New Moon7Tue
8Wed9:081.77:09-0.45:587:55New Moon8Wed
9Thu9:511.87:59-0.45:587:56New Moon9Thu
10Fri10:351.78:49-0.45:587:56Waxing Crescent10Fri
11Sat11:191.69:36-0.35:587:56Waxing Crescent11Sat
12Sun12:001.410:15-0.15:587:57Waxing Crescent12Sun
13Mon12:291.210:380.15:587:57First Quarter13Mon
14Tue11:570.910:250.45:587:57First Quarter14Tue
15Wed8:230.88:220.55:597:58First Quarter15Wed
16Thu7:051.04:300.35:597:58First Quarter16Thu
17Fri6:491.14:360.15:597:58Waxing Gibbous17Fri
18Sat7:021.35:04-0.15:597:58Waxing Gibbous18Sat
19Sun7:281.45:36-0.25:597:59Waxing Gibbous19Sun
20Mon7:591.56:09-0.25:597:59Waxing Gibbous20Mon
21Tue8:311.56:41-0.36:007:59Full Moon21Tue
22Wed9:041.57:11-0.26:007:59Full Moon22Wed
23Thu9:361.57:41-0.26:008:00Full Moon23Thu
24Fri10:071.48:09-0.26:008:00Full Moon24Fri
25Sat10:371.48:35-0.16:018:00Waning Gibbous25Sat
26Sun11:051.38:560.06:018:00Waning Gibbous26Sun
27Mon11:291.29:080.16:018:00Waning Gibbous27Mon
28Tue11:411.09:080.26:028:00Waning Gibbous28Tue
29Wed11:070.98:470.36:028:00Third Quarter29Wed
30Thu7:240.87:480.46:028:00Third Quarter30Thu
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 3:55 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 91% 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 (91% 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