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

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 5:02 pm (-0.3 ft)
Next high tide : in 6h 41m at 6:29 am (1.5 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:091.410:010.46:357:19Waning Gibbous1Sat
2Sun12:481.711:450.16:357:18Third Quarter2Sun
3Mon1:411.91:040.06:367:17Third Quarter3Mon
4Tue2:432.02:13-0.16:377:16Third Quarter4Tue
5Wed3:552.13:14-0.16:377:15Third Quarter5Wed
6Thu5:132.04:09-0.16:387:14Waning Crescent6Thu
7Fri6:311.94:580.16:387:13Waning Crescent7Fri
8Sat7:421.85:370.36:397:11Waning Crescent8Sat
9Sun8:441.76:040.56:397:10New Moon9Sun
10Mon9:411.56:120.76:407:09New Moon10Mon
11Tue10:381.411:541.05:500.96:407:08New Moon11Tue
12Wed11:471.211:101.23:500.94:481.06:417:07New Moon12Wed
13Thu11:071.45:490.86:417:05Waxing Crescent13Thu
14Fri11:221.57:230.76:427:04Waxing Crescent14Fri
15Sat11:491.78:510.66:427:03Waxing Crescent15Sat
16Sun10:150.56:437:02Waxing Crescent16Sun
17Mon12:261.811:330.46:437:00First Quarter17Mon
18Tue1:121.912:420.46:446:59First Quarter18Tue
19Wed2:091.91:420.36:446:58First Quarter19Wed
20Thu3:161.92:340.26:456:57First Quarter20Thu
21Fri4:311.93:220.26:456:56Waxing Gibbous21Fri
22Sat5:481.94:040.36:466:54Waxing Gibbous22Sat
23Sun7:041.94:420.46:466:53Waxing Gibbous23Sun
24Mon8:211.85:140.66:476:52Waxing Gibbous24Mon
25Tue9:471.611:131.05:300.96:476:51Full Moon25Tue
26Wed11:391.49:591.32:520.94:571.26:486:50Full Moon26Wed
27Thu9:571.65:070.76:486:48Full Moon27Thu
28Fri10:281.96:510.56:496:47Waning Gibbous28Fri
29Sat11:132.18:270.36:496:46Waning Gibbous29Sat
30Sun9:580.16:506:45Waning Gibbous30Sun
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 11:45 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 transitional phase. Tonight's moon is 76% 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 Waxing Gibbous (76% 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