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 5h 10m 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 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:291.44:110.16:344:59Waxing Gibbous1Mon
2Tue7:531.54:53-0.16:354:59Full Moon2Tue
3Wed8:291.65:35-0.26:354:59Full Moon3Wed
4Thu9:051.76:23-0.36:364:59Full Moon4Thu
5Fri9:471.77:17-0.46:375:00Waning Gibbous5Fri
6Sat10:351.68:11-0.46:375:00Waning Gibbous6Sat
7Sun11:171.49:05-0.46:385:00Waning Gibbous7Sun
8Mon11:531.29:59-0.26:395:00Third Quarter8Mon
9Tue10:41-0.16:405:00Third Quarter9Tue
10Wed12:111.09:350.710:590.26:405:00Third Quarter10Wed
11Thu7:230.710:350.46:415:01Third Quarter11Thu
12Fri6:350.93:110.36:425:01Waning Crescent12Fri
13Sat6:291.13:230.06:425:01Waning Crescent13Sat
14Sun6:471.23:59-0.26:435:02Waning Crescent14Sun
15Mon7:171.34:35-0.46:435:02Waning Crescent15Mon
16Tue7:531.45:17-0.46:445:02New Moon16Tue
17Wed8:231.45:53-0.56:455:03New Moon17Wed
18Thu8:591.36:29-0.56:455:03New Moon18Thu
19Fri9:291.37:05-0.56:465:04Waxing Crescent19Fri
20Sat10:051.27:41-0.46:465:04Waxing Crescent20Sat
21Sun10:351.18:17-0.36:475:05Waxing Crescent21Sun
22Mon10:590.98:47-0.36:475:05Waxing Crescent22Mon
23Tue11:110.89:11-0.26:485:06First Quarter23Tue
24Wed10:410.69:170.06:485:06First Quarter24Wed
25Thu7:410.58:590.16:495:07First Quarter25Thu
26Fri6:110.67:470.16:495:07First Quarter26Fri
27Sat5:470.73:530.16:495:08First Quarter27Sat
28Sun5:590.83:17-0.16:505:09Waxing Gibbous28Sun
29Mon6:231.03:35-0.36:505:09Waxing Gibbous29Mon
30Tue6:531.14:05-0.56:505:10Waxing Gibbous30Tue
31Wed7:291.34:47-0.76:515:11Full Moon31Wed
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