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 7h 29m 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 - Oct 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:161.64:180.76:516:42Waxing Gibbous1Wed
2Thu8:261.54:350.96:516:41Waxing Gibbous2Thu
3Fri9:311.411:121.24:361.06:526:40Full Moon3Fri
4Sat10:381.310:321.32:561.14:151.16:526:39Full Moon4Sat
5Sun12:011.24:241.03:251.26:536:38Full Moon5Sun
6Mon10:371.55:390.96:536:37Full Moon6Mon
7Tue11:001.76:520.86:546:36Waning Gibbous7Tue
8Wed11:301.88:070.76:556:34Waning Gibbous8Wed
9Thu9:260.66:556:33Waning Gibbous9Thu
10Fri12:081.910:430.56:566:32Waning Gibbous10Fri
11Sat12:552.011:550.46:566:31Third Quarter11Sat
12Sun1:502.012:590.36:576:30Third Quarter12Sun
13Mon2:571.91:570.46:586:29Third Quarter13Mon
14Tue4:221.82:490.46:586:28Waning Crescent14Tue
15Wed6:061.73:330.66:596:27Waning Crescent15Wed
16Thu7:591.64:050.86:596:26Waning Crescent16Thu
17Fri9:541.410:151.24:101.07:006:25Waning Crescent17Fri
18Sat12:181.34:000.93:091.27:016:24New Moon18Sat
19Sun9:431.65:230.77:016:23New Moon19Sun
20Mon10:071.86:340.67:026:22New Moon20Mon
21Tue10:381.97:410.57:036:21Waxing Crescent21Tue
22Wed11:141.98:450.47:036:20Waxing Crescent22Wed
23Thu11:511.99:470.47:046:19Waxing Crescent23Thu
24Fri10:460.47:056:18Waxing Crescent24Fri
25Sat12:301.911:430.47:056:17First Quarter25Sat
26Sun1:121.812:340.57:066:16First Quarter26Sun
27Mon1:581.71:190.57:076:15First Quarter27Mon
28Tue2:521.51:550.67:076:14First Quarter28Tue
29Wed4:121.42:210.77:086:14Waxing Gibbous29Wed
30Thu6:291.310:361.22:300.97:096:13Waxing Gibbous30Thu
31Fri8:451.29:311.22:481.12:151.07:106:12Waxing Gibbous31Fri
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