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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 9:51 pm (-0.5 ft)
Next high tide : in 7h 57m at 11:11 am (1.9 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:371.411:30-0.26:467:16Waxing Crescent1Sat
2Sun1:291.46:457:16First Quarter2Sun
3Mon2:281.412:44-0.36:447:17First Quarter3Mon
4Tue3:381.31:48-0.26:437:17First Quarter4Tue
5Wed5:031.22:43-0.16:427:18Waxing Gibbous5Wed
6Thu6:441.13:280.06:417:18Waxing Gibbous6Thu
7Fri8:260.94:010.26:397:19Waxing Gibbous7Fri
8Sat12:080.74:150.42:440.66:387:20Waxing Gibbous8Sat
9Sun10:440.711:520.74:030.54:240.56:377:20Full Moon9Sun
10Mon10:150.93:100.75:290.46:367:21Full Moon10Mon
11Tue10:131.06:230.36:357:21Full Moon11Tue
12Wed10:251.17:140.26:347:22Full Moon12Wed
13Thu10:441.28:060.16:337:22Waning Gibbous13Thu
14Fri11:091.39:000.16:327:23Waning Gibbous14Fri
15Sat11:391.49:580.16:317:24Waning Gibbous15Sat
16Sun12:151.410:590.16:307:24Waning Gibbous16Sun
17Mon12:561.411:570.16:297:25Third Quarter17Mon
18Tue1:431.36:287:25Third Quarter18Tue
19Wed2:391.312:500.16:277:26Third Quarter19Wed
20Thu3:491.21:370.16:267:26Third Quarter20Thu
21Fri5:311.12:160.26:257:27Waning Crescent21Fri
22Sat7:401.02:470.36:247:28Waning Crescent22Sat
23Sun10:390.89:540.93:070.52:520.76:237:28Waning Crescent23Sun
24Mon9:450.93:050.74:150.56:227:29Waning Crescent24Mon
25Tue9:281.15:250.26:217:29New Moon25Tue
26Wed9:361.36:310.06:207:30New Moon26Wed
27Thu10:021.57:39-0.16:197:31New Moon27Thu
28Fri10:381.68:48-0.26:187:31Waxing Crescent28Fri
29Sat11:211.79:57-0.26:177:32Waxing Crescent29Sat
30Sun12:081.711:05-0.26:167:33Waxing Crescent30Sun
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 4:31 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 spring phase. Tonight's moon is 10% 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 near their weekly maximum.

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 (10% illuminated). This places Southwest Pass, Mississippi River, LA in a spring tide cycle, so tidal ranges are near their weekly maximum 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