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

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 3h 40m at 4:04 pm (0.4 ft)
Next high tide (tomorrow) : 6:30 am (1.1 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:58 am
Moon phase : Third Quarter (36% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:341.311:12-0.26:467:16Waxing Crescent1Tue
2Wed1:221.46:457:16First Quarter2Wed
3Thu2:201.412:25-0.26:447:17First Quarter3Thu
4Fri3:301.41:31-0.26:427:17First Quarter4Fri
5Sat4:561.32:29-0.26:417:18First Quarter5Sat
6Sun6:401.23:21-0.16:407:19Waxing Gibbous6Sun
7Mon8:281.04:040.16:397:19Waxing Gibbous7Mon
8Tue10:170.94:340.36:387:20Waxing Gibbous8Tue
9Wed10:470.74:370.54:200.56:377:20Full Moon9Wed
10Thu12:280.810:10 AM0.93:380.75:420.36:367:21Full Moon10Thu
11Fri10:111.16:510.26:357:21Full Moon11Fri
12Sat10:321.27:550.16:347:22Waning Gibbous12Sat
13Sun11:001.48:550.06:327:23Waning Gibbous13Sun
14Mon11:321.49:550.06:317:23Waning Gibbous14Mon
15Tue12:071.410:540.06:307:24Waning Gibbous15Tue
16Wed12:451.411:510.06:297:24Third Quarter16Wed
17Thu1:281.46:287:25Third Quarter17Thu
18Fri2:161.312:450.16:277:26Third Quarter18Fri
19Sat3:141.21:330.16:267:26Third Quarter19Sat
20Sun4:361.12:130.26:257:27Waning Crescent20Sun
21Mon6:371.02:430.36:247:27Waning Crescent21Mon
22Tue11:320.88:410.92:580.52:150.86:237:28Waning Crescent22Tue
23Wed10:050.810:490.82:540.63:450.66:227:29Waning Crescent23Wed
24Thu9:341.02:170.74:470.46:217:29New Moon24Thu
25Fri9:311.15:430.36:207:30New Moon25Fri
26Sat9:441.36:390.16:197:30New Moon26Sat
27Sun10:091.47:370.06:197:31New Moon27Sun
28Mon10:411.68:40-0.16:187:32Waxing Crescent28Mon
29Tue11:201.79:45-0.26:177:32Waxing Crescent29Tue
30Wed12:031.710:51-0.26:167:33Waxing Crescent30Wed
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 11:17 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 36% 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 Third Quarter (36% 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