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

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 7:36 pm (-0.1 ft)
Next high tide (tomorrow) : in 14h 09m at 9:41 am (1.8 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 6:24 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Feb 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:350.26:03-0.16:465:36Waxing Crescent1Sat
2Sun2:230.34:390.06:455:37First Quarter2Sun
3Mon2:410.52:28-0.16:455:38First Quarter3Mon
4Tue3:160.61:55-0.36:445:38First Quarter4Tue
5Wed4:010.72:14-0.46:435:39First Quarter5Wed
6Thu4:520.82:44-0.56:435:40Waxing Gibbous6Thu
7Fri5:440.93:17-0.66:425:41Waxing Gibbous7Fri
8Sat6:360.93:52-0.76:415:42Waxing Gibbous8Sat
9Sun7:270.94:27-0.76:415:42Waxing Gibbous9Sun
10Mon8:170.95:02-0.76:405:43Full Moon10Mon
11Tue9:080.95:37-0.66:395:44Full Moon11Tue
12Wed10:000.76:08-0.56:385:45Full Moon12Wed
13Thu10:560.66:32-0.36:385:46Waning Gibbous13Thu
14Fri6:38-0.16:375:46Waning Gibbous14Fri
15Sat12:050.312:580.36:020.17:400.06:365:47Waning Gibbous15Sat
16Sun1:030.510:54-0.26:355:48Waning Gibbous16Sun
17Mon1:350.76:345:49Third Quarter17Mon
18Tue2:240.812:24-0.46:335:49Third Quarter18Tue
19Wed3:250.91:26-0.56:325:50Third Quarter19Wed
20Thu4:321.02:19-0.66:315:51Waning Crescent20Thu
21Fri5:401.03:08-0.66:315:51Waning Crescent21Fri
22Sat6:440.93:52-0.66:305:52Waning Crescent22Sat
23Sun7:410.94:31-0.56:295:53Waning Crescent23Sun
24Mon8:330.85:01-0.46:285:54New Moon24Mon
25Tue9:190.75:22-0.26:275:54New Moon25Tue
26Wed10:040.65:31-0.16:265:55New Moon26Wed
27Thu12:250.25:250.02:550.26:255:56New Moon27Thu
28Fri11:440.311:460.35:010.14:530.26:245:56Waxing Crescent28Fri
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 2:38 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 2% 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 New Moon (2% 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