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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 10:32 pm (0.3 ft)
Next high tide : in 9h 50m at 12:51 pm (1.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:59 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:580.94:460.26:467:15Waning Crescent1Thu
2Fri10:110.84:570.36:457:16New Moon2Fri
3Sat11:170.611:320.74:470.54:000.56:447:17New Moon3Sat
4Sun10:390.84:090.65:170.46:437:17New Moon4Sun
5Mon10:310.96:220.36:427:18New Moon5Mon
6Tue10:411.07:230.26:417:18New Moon6Tue
7Wed11:011.28:250.16:407:19Waxing Crescent7Wed
8Thu11:291.39:300.06:387:19Waxing Crescent8Thu
9Fri12:041.410:380.06:377:20Waxing Crescent9Fri
10Sat12:461.411:44-0.16:367:21Waxing Crescent10Sat
11Sun1:351.56:357:21First Quarter11Sun
12Mon2:351.512:46-0.16:347:22First Quarter12Mon
13Tue3:481.41:43-0.16:337:22First Quarter13Tue
14Wed5:191.32:35-0.16:327:23Waxing Gibbous14Wed
15Thu7:051.23:230.06:317:23Waxing Gibbous15Thu
16Fri9:011.14:030.26:307:24Waxing Gibbous16Fri
17Sat11:090.711:140.94:300.43:050.56:297:25Waxing Gibbous17Sat
18Sun9:550.94:190.74:530.36:287:25Full Moon18Sun
19Mon9:371.16:170.16:277:26Full Moon19Mon
20Tue9:571.47:35-0.16:267:26Full Moon20Tue
21Wed10:341.68:50-0.26:257:27Waning Gibbous21Wed
22Thu11:171.710:03-0.36:247:28Waning Gibbous22Thu
23Fri12:051.811:12-0.36:237:28Waning Gibbous23Fri
24Sat12:541.76:227:29Third Quarter24Sat
25Sun1:451.612:17-0.26:217:29Third Quarter25Sun
26Mon2:371.41:13-0.16:207:30Third Quarter26Mon
27Tue3:341.21:580.16:197:31Third Quarter27Tue
28Wed4:541.02:310.36:187:31Waning Crescent28Wed
29Thu7:280.92:480.46:177:32Waning Crescent29Thu
30Fri10:260.910:130.82:400.64:010.76:167:32Waning Crescent30Fri
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 5:41 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 38% 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 (38% 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