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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide (tomorrow) : 4:32 pm (-0.2 ft)
Next high tide (tomorrow) : in 12h 07m at 6:03 am (1.3 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (68% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Dec 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:081.75:49-0.36:334:59New Moon1Tue
2Wed8:441.76:29-0.36:344:59New Moon2Wed
3Thu9:231.77:13-0.36:354:59Waxing Crescent3Thu
4Fri10:021.67:58-0.36:354:59Waxing Crescent4Fri
5Sat10:401.58:43-0.36:364:59Waxing Crescent5Sat
6Sun11:171.49:23-0.26:375:00Waxing Crescent6Sun
7Mon11:511.39:57-0.26:385:00First Quarter7Mon
8Tue10:220.06:385:00First Quarter8Tue
9Wed12:151.010:040.710:300.26:395:00First Quarter9Wed
10Thu6:320.79:530.46:405:00First Quarter10Thu
11Fri5:380.92:260.36:405:00Waxing Gibbous11Fri
12Sat5:371.22:420.06:415:01Waxing Gibbous12Sat
13Sun6:041.53:24-0.46:425:01Waxing Gibbous13Sun
14Mon6:471.74:15-0.76:425:01Waxing Gibbous14Mon
15Tue7:371.95:11-0.96:435:02Full Moon15Tue
16Wed8:321.96:10-1.06:445:02Full Moon16Wed
17Thu9:271.87:11-1.06:445:02Full Moon17Thu
18Fri10:211.78:12-0.96:455:03Waning Gibbous18Fri
19Sat11:101.49:08-0.76:455:03Waning Gibbous19Sat
20Sun11:501.19:55-0.46:465:04Waning Gibbous20Sun
21Mon10:22-0.26:465:04Third Quarter21Mon
22Tue12:040.88:510.510:050.16:475:05Third Quarter22Tue
23Wed5:340.67:340.36:475:05Third Quarter23Wed
24Thu4:570.83:040.16:485:06Third Quarter24Thu
25Fri5:051.03:02-0.26:485:06Waning Crescent25Fri
26Sat5:291.13:25-0.46:495:07Waning Crescent26Sat
27Sun6:011.23:55-0.66:495:08Waning Crescent27Sun
28Mon6:391.34:28-0.76:495:08Waning Crescent28Mon
29Tue7:191.35:04-0.76:505:09New Moon29Tue
30Wed8:011.35:43-0.76:505:09New Moon30Wed
31Thu8:441.36:22-0.76:505:10New Moon31Thu
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 11:17 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 68% 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 (68% 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