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

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 8:33 pm (-0.3 ft)
Next high tide : in 3h 42m at 10:14 am (1.6 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:331.04:320.45:597:51Waxing Gibbous1Fri
2Sat7:581.25:050.15:597:52Waxing Gibbous2Sat
3Sun8:011.45:44-0.15:587:52Waxing Gibbous3Sun
4Mon8:221.66:24-0.25:587:53Full Moon4Mon
5Tue8:511.77:04-0.35:587:53Full Moon5Tue
6Wed9:231.77:43-0.35:587:54Full Moon6Wed
7Thu9:561.78:22-0.35:587:54Full Moon7Thu
8Fri10:311.79:01-0.35:587:55Waning Gibbous8Fri
9Sat11:061.69:41-0.25:587:55Waning Gibbous9Sat
10Sun11:401.510:19-0.15:587:55Waning Gibbous10Sun
11Mon12:121.410:510.05:587:56Waning Gibbous11Mon
12Tue12:381.211:130.15:587:56Third Quarter12Tue
13Wed12:441.011:160.35:587:57Third Quarter13Wed
14Thu11:070.910:450.45:587:57Third Quarter14Thu
15Fri8:280.98:150.55:587:57Third Quarter15Fri
16Sat7:301.04:350.35:587:58Waning Crescent16Sat
17Sun7:171.24:440.15:587:58Waning Crescent17Sun
18Mon7:291.35:14-0.25:597:58Waning Crescent18Mon
19Tue7:551.55:53-0.45:597:58Waning Crescent19Tue
20Wed8:301.76:39-0.55:597:59New Moon20Wed
21Thu9:111.87:29-0.65:597:59New Moon21Thu
22Fri9:571.98:22-0.65:597:59New Moon22Fri
23Sat10:441.89:15-0.66:007:59Waxing Crescent23Sat
24Sun11:321.710:05-0.46:007:59Waxing Crescent24Sun
25Mon12:171.510:48-0.26:008:00Waxing Crescent25Mon
26Tue12:541.211:130.16:018:00First Quarter26Tue
27Wed12:420.910:590.36:018:00First Quarter27Wed
28Thu8:330.88:010.56:018:00First Quarter28Thu
29Fri6:580.94:110.26:028:00First Quarter29Fri
30Sat6:401.24:32-0.16:028:00Waxing Gibbous30Sat
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 3:23 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 spring phase. Tonight's moon is 97% 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 Full Moon (97% 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