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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 1h 21m at 4:12 pm (-0.5 ft)
Next high tide (tomorrow) : 6:28 am (2.0 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:081.56:05-0.15:597:51Waxing Gibbous1Sun
2Mon8:301.66:39-0.25:597:51Full Moon2Mon
3Tue8:571.77:13-0.35:597:52Full Moon3Tue
4Wed9:271.77:50-0.35:587:52Full Moon4Wed
5Thu10:001.78:30-0.35:587:53Full Moon5Thu
6Fri10:361.79:12-0.35:587:53Waning Gibbous6Fri
7Sat11:131.69:54-0.25:587:54Waning Gibbous7Sat
8Sun11:501.610:33-0.15:587:54Waning Gibbous8Sun
9Mon12:251.411:050.05:587:55Waning Gibbous9Mon
10Tue12:551.311:270.15:587:55Third Quarter10Tue
11Wed1:101.111:320.35:587:55Third Quarter11Wed
12Thu11:080.911:010.45:587:56Third Quarter12Thu
13Fri8:100.94:520.55:587:56Third Quarter13Fri
14Sat7:161.04:090.25:587:57Waning Crescent14Sat
15Sun7:081.34:40-0.15:587:57Waning Crescent15Sun
16Mon7:261.55:24-0.45:587:57Waning Crescent16Mon
17Tue8:001.86:15-0.65:587:58New Moon17Tue
18Wed8:441.97:10-0.75:587:58New Moon18Wed
19Thu9:332.08:08-0.85:597:58New Moon19Thu
20Fri10:252.09:06-0.75:597:58Waxing Crescent20Fri
21Sat11:181.910:02-0.65:597:59Waxing Crescent21Sat
22Sun12:081.710:51-0.35:597:59Waxing Crescent22Sun
23Mon12:511.411:240.05:597:59Waxing Crescent23Mon
24Tue1:111.111:240.26:007:59First Quarter24Tue
25Wed10:230.89:530.56:007:59First Quarter25Wed
26Thu7:220.84:350.36:007:59First Quarter26Thu
27Fri6:371.14:270.16:008:00Waxing Gibbous27Fri
28Sat6:401.34:52-0.16:018:00Waxing Gibbous28Sat
29Sun7:011.45:23-0.36:018:00Waxing Gibbous29Sun
30Mon7:301.55:55-0.46:018:00Waxing Gibbous30Mon
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 11:20 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 22% 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 Waning Crescent (22% 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