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

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 6h 53m at 3:58 pm (-0.2 ft)
Next high tide (tomorrow) : 5:44 am (1.5 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:13 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Feb 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:551.23:24-1.06:455:36Waning Crescent1Sat
2Sun6:561.34:16-1.16:455:37Waning Crescent2Sun
3Mon7:571.35:10-1.16:445:38New Moon3Mon
4Tue8:571.26:04-1.16:445:38New Moon4Tue
5Wed9:551.16:55-0.96:435:39New Moon5Wed
6Thu10:510.87:41-0.76:425:40Waxing Crescent6Thu
7Fri11:470.58:12-0.46:425:41Waxing Crescent7Fri
8Sat7:59-0.16:415:42Waxing Crescent8Sat
9Sun12:550.21:350.35:460.111:28-0.16:405:42Waxing Crescent9Sun
10Mon1:470.56:395:43First Quarter10Mon
11Tue2:240.712:49-0.36:395:44First Quarter11Tue
12Wed3:110.81:37-0.56:385:45First Quarter12Wed
13Thu4:030.92:20-0.66:375:45First Quarter13Thu
14Fri5:000.93:01-0.76:365:46Waxing Gibbous14Fri
15Sat5:571.03:41-0.76:355:47Waxing Gibbous15Sat
16Sun6:521.04:20-0.76:355:48Waxing Gibbous16Sun
17Mon7:420.94:57-0.66:345:48Waxing Gibbous17Mon
18Tue8:270.95:31-0.66:335:49Full Moon18Tue
19Wed9:070.86:00-0.56:325:50Full Moon19Wed
20Thu9:460.86:21-0.36:315:51Full Moon20Thu
21Fri10:250.66:30-0.26:305:51Full Moon21Fri
22Sat11:100.56:23-0.16:295:52Waning Gibbous22Sat
23Sun12:430.35:530.15:310.16:285:53Waning Gibbous23Sun
24Mon12:160.312:310.44:360.28:440.06:275:53Waning Gibbous24Mon
25Tue12:460.611:02-0.26:265:54Waning Gibbous25Tue
26Wed1:200.86:255:55Third Quarter26Wed
27Thu2:091.012:14-0.46:245:56Third Quarter27Thu
28Fri3:111.21:13-0.66:235:56Third Quarter28Fri
29Sat4:241.32:10-0.76:225:57Waning Crescent29Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8760959)

Common Questions About Southwest Pass, Mississippi River, LA Tides

Show All
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 10:51 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 71% 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 (71% 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