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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 10h 13m at 5:13 pm (-0.7 ft)
Next high tide (tomorrow) : 7:32 am (2.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Dec 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:161.09:210.811:340.46:344:59First Quarter1Sat
2Sun7:290.910:380.56:344:59Waxing Gibbous2Sun
3Mon6:451.03:310.56:354:59Waxing Gibbous3Mon
4Tue6:391.23:380.26:364:59Waxing Gibbous4Tue
5Wed6:531.34:050.06:375:00Waxing Gibbous5Wed
6Thu7:181.44:39-0.26:375:00Full Moon6Thu
7Fri7:491.55:16-0.36:385:00Full Moon7Fri
8Sat8:251.65:56-0.46:395:00Full Moon8Sat
9Sun9:041.66:41-0.56:395:00Full Moon9Sun
10Mon9:461.67:29-0.56:405:00Waning Gibbous10Mon
11Tue10:291.68:20-0.56:415:01Waning Gibbous11Tue
12Wed11:131.59:10-0.56:415:01Waning Gibbous12Wed
13Thu11:561.39:57-0.46:425:01Waning Gibbous13Thu
14Fri10:37-0.26:435:02Third Quarter14Fri
15Sat12:301.010:470.710:590.06:435:02Third Quarter15Sat
16Sun7:020.610:360.36:445:02Third Quarter16Sun
17Mon5:590.82:330.26:455:03Waning Crescent17Mon
18Tue5:551.12:58-0.16:455:03Waning Crescent18Tue
19Wed6:191.33:42-0.56:465:04Waning Crescent19Wed
20Thu6:571.54:29-0.76:465:04New Moon20Thu
21Fri7:401.65:18-0.86:475:04New Moon21Fri
22Sat8:261.66:07-0.96:475:05New Moon22Sat
23Sun9:101.56:56-0.86:485:06New Moon23Sun
24Mon9:531.47:44-0.76:485:06Waxing Crescent24Mon
25Tue10:311.28:28-0.66:495:07Waxing Crescent25Tue
26Wed11:041.09:06-0.56:495:07Waxing Crescent26Wed
27Thu11:280.89:34-0.36:495:08Waxing Crescent27Thu
28Fri11:250.69:46-0.26:505:08First Quarter28Fri
29Sat8:510.49:270.06:505:09First Quarter29Sat
30Sun6:000.57:530.16:505:10First Quarter30Sun
31Mon5:150.63:460.06:515:10First Quarter31Mon
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 12:22 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 11% 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 Crescent (11% 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