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

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 10:57 pm (0.1 ft)
Next high tide : in 6h 51m at 12:40 pm (1.3 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Dec 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:301.56:58-0.16:344:59Waxing Crescent1Thu
2Fri10:031.57:36-0.16:344:59Waxing Crescent2Fri
3Sat10:371.48:15-0.16:354:59Waxing Crescent3Sat
4Sun11:101.38:54-0.16:364:59Waxing Crescent4Sun
5Mon11:381.19:300.06:375:00First Quarter5Mon
6Tue11:400.910:010.16:375:00First Quarter6Tue
7Wed8:370.810:180.26:385:00First Quarter7Wed
8Thu6:580.810:030.46:395:00First Quarter8Thu
9Fri6:280.92:470.46:405:00Waxing Gibbous9Fri
10Sat6:311.13:030.16:405:00Waxing Gibbous10Sat
11Sun6:541.33:44-0.26:415:01Waxing Gibbous11Sun
12Mon7:291.54:32-0.46:425:01Full Moon12Mon
13Tue8:111.65:23-0.66:425:01Full Moon13Tue
14Wed8:551.66:16-0.66:435:02Full Moon14Wed
15Thu9:391.57:09-0.66:435:02Waning Gibbous15Thu
16Fri10:211.37:59-0.56:445:02Waning Gibbous16Fri
17Sat10:561.28:45-0.46:455:03Waning Gibbous17Sat
18Sun11:180.99:20-0.26:455:03Waning Gibbous18Sun
19Mon11:000.79:370.06:465:04Third Quarter19Mon
20Tue8:250.69:230.16:465:04Third Quarter20Tue
21Wed6:320.68:030.26:475:05Third Quarter21Wed
22Thu5:580.74:250.16:475:05Third Quarter22Thu
23Fri5:580.83:350.06:485:06Waning Crescent23Fri
24Sat6:150.93:43-0.26:485:06Waning Crescent24Sat
25Sun6:401.04:06-0.36:495:07Waning Crescent25Sun
26Mon7:091.14:34-0.46:495:07Waning Crescent26Mon
27Tue7:421.15:05-0.56:495:08New Moon27Tue
28Wed8:151.15:37-0.56:505:09New Moon28Wed
29Thu8:491.16:09-0.56:505:09New Moon29Thu
30Fri9:231.16:41-0.56:505:10New Moon30Fri
31Sat9:581.17:12-0.56:515:11Waxing Crescent31Sat
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 5:48 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 27% 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 Crescent (27% 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