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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 44m at 4:09 pm (0.0 ft)
Next high tide (tomorrow) : 6:03 am (1.3 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (68% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Oct 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:561.510:511.24:531.06:506:43New Moon1Thu
2Fri11:381.310:041.43:401.03:391.26:516:42New Moon2Fri
3Sat10:011.65:190.96:516:41New Moon3Sat
4Sun10:151.76:320.76:526:40New Moon4Sun
5Mon10:381.87:340.66:536:39Waxing Crescent5Mon
6Tue11:081.98:350.56:536:37Waxing Crescent6Tue
7Wed11:452.09:390.56:546:36Waxing Crescent7Wed
8Thu10:470.46:546:35Waxing Crescent8Thu
9Fri12:292.011:550.46:556:34First Quarter9Fri
10Sat1:222.012:570.46:556:33First Quarter10Sat
11Sun2:242.01:500.46:566:32First Quarter11Sun
12Mon3:351.92:360.46:576:31First Quarter12Mon
13Tue4:551.83:130.56:576:30Waxing Gibbous13Tue
14Wed6:231.73:430.76:586:29Waxing Gibbous14Wed
15Thu8:021.611:091.13:590.96:586:28Waxing Gibbous15Thu
16Fri9:591.49:281.31:461.13:431.16:596:27Waxing Gibbous16Fri
17Sat9:031.53:570.87:006:25Full Moon17Sat
18Sun9:171.85:240.67:006:24Full Moon18Sun
19Mon9:502.16:420.37:016:23Full Moon19Mon
20Tue10:342.37:590.17:016:22Waning Gibbous20Tue
21Wed11:262.49:170.07:026:21Waning Gibbous21Wed
22Thu10:35-0.17:036:21Waning Gibbous22Thu
23Fri12:232.411:50-0.17:036:20Third Quarter23Fri
24Sat1:252.312:580.07:046:19Third Quarter24Sat
25Sun2:322.11:560.27:056:18Third Quarter25Sun
26Mon3:481.82:410.47:056:17Third Quarter26Mon
27Tue5:221.63:070.77:066:16Waning Crescent27Tue
28Wed7:321.310:121.23:000.97:076:15Waning Crescent28Wed
29Thu10:231.18:581.33:171.01:401.17:086:14Waning Crescent29Thu
30Fri8:421.54:360.87:086:13Waning Crescent30Fri
31Sat8:491.75:280.67:096:13New Moon31Sat
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 11:06 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 68% 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 First Quarter (68% 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