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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 5:13 pm (-0.7 ft)
Next high tide : in 4h 28m at 6:35 am (1.8 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Apr 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:551.32:51-0.35:476:15Waxing Gibbous1Mon
2Tue7:271.23:35-0.15:456:16Waxing Gibbous2Tue
3Wed9:081.14:130.15:446:17Waxing Gibbous3Wed
4Thu10:080.511:210.94:340.42:350.45:436:17Full Moon4Thu
5Fri8:580.83:540.74:350.15:426:18Full Moon5Fri
6Sat8:591.16:10-0.15:416:18Full Moon6Sat
7Sun9:321.47:38-0.35:406:19Waning Gibbous7Sun
8Mon10:161.79:01-0.45:396:19Waning Gibbous8Mon
9Tue11:061.810:19-0.45:386:20Waning Gibbous9Tue
10Wed12:001.811:32-0.45:366:21Third Quarter10Wed
11Thu12:591.75:356:21Third Quarter11Thu
12Fri2:041.512:37-0.35:346:22Third Quarter12Fri
13Sat3:181.41:32-0.25:336:22Third Quarter13Sat
14Sun4:471.22:160.05:326:23Waning Crescent14Sun
15Mon6:271.02:460.25:316:23Waning Crescent15Mon
16Tue8:110.92:570.45:306:24Waning Crescent16Tue
17Wed9:330.810:180.82:400.63:000.65:296:25Waning Crescent17Wed
18Thu8:460.91:330.74:090.45:286:25New Moon18Thu
19Fri8:341.15:020.35:276:26New Moon19Fri
20Sat8:411.35:500.15:266:26New Moon20Sat
21Sun8:591.46:370.05:256:27New Moon21Sun
22Mon9:251.57:270.05:246:27Waxing Crescent22Mon
23Tue9:571.68:22-0.15:236:28Waxing Crescent23Tue
24Wed10:361.79:22-0.15:226:29Waxing Crescent24Wed
25Thu11:201.710:24-0.25:216:29Waxing Crescent25Thu
26Fri12:101.711:23-0.25:206:30First Quarter26Fri
27Sat1:071.65:196:30First Quarter27Sat
28Sun3:141.512:17-0.16:187:31First Quarter28Sun
29Mon4:401.32:050.06:177:32First Quarter29Mon
30Tue6:461.12:460.16:167:32Waxing Gibbous30Tue
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 11:54 am — 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 11% 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 Waning Crescent (11% 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