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

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 4:03 pm (0.0 ft)
Next high tide : in 49m at 5:01 am (1.7 ft)
Sunset today : 7:30 pm
Sunrise tomorrow : 6:30 am
Moon phase : Waxing Gibbous (74% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Feb 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:520.62:10-0.46:465:36First Quarter1Sun
2Mon4:340.72:39-0.56:455:37Waxing Gibbous2Mon
3Tue5:190.83:11-0.66:455:38Waxing Gibbous3Tue
4Wed6:070.93:45-0.76:445:38Waxing Gibbous4Wed
5Thu6:530.94:20-0.76:445:39Waxing Gibbous5Thu
6Fri7:380.94:55-0.76:435:40Waxing Gibbous6Fri
7Sat8:190.95:28-0.66:425:41Full Moon7Sat
8Sun8:580.85:58-0.66:425:42Full Moon8Sun
9Mon9:360.86:23-0.56:415:42Full Moon9Mon
10Tue10:130.76:42-0.46:405:43Full Moon10Tue
11Wed10:510.56:53-0.36:395:44Waning Gibbous11Wed
12Thu11:340.36:49-0.16:385:45Waning Gibbous12Thu
13Fri1:570.26:190.07:560.16:385:46Waning Gibbous13Fri
14Sat12:360.11:490.44:290.111:46-0.16:375:46Third Quarter14Sat
15Sun2:110.66:365:47Third Quarter15Sun
16Mon2:520.812:44-0.46:355:48Third Quarter16Mon
17Tue3:481.01:36-0.66:345:48Third Quarter17Tue
18Wed4:531.12:28-0.76:335:49Waning Crescent18Wed
19Thu6:011.13:20-0.86:335:50Waning Crescent19Thu
20Fri7:081.24:12-0.86:325:51Waning Crescent20Fri
21Sat8:121.15:01-0.86:315:51New Moon21Sat
22Sun9:121.05:47-0.66:305:52New Moon22Sun
23Mon10:100.86:26-0.46:295:53New Moon23Mon
24Tue11:090.66:49-0.26:285:53New Moon24Tue
25Wed12:500.26:370.14:160.16:275:54Waxing Crescent25Wed
26Thu12:180.412:070.45:210.27:190.16:265:55Waxing Crescent26Thu
27Fri12:180.610:15-0.16:255:55Waxing Crescent27Fri
28Sat12:480.711:50-0.26:245:56First Quarter28Sat
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 10:32 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 transitional phase. Tonight's moon is 74% 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 Waxing Gibbous (74% 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