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 10h 47m 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 - Jan 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:221.27:04-0.76:515:11New Moon1Fri
2Sat9:571.17:37-0.66:515:12Waxing Crescent2Sat
3Sun10:301.08:04-0.66:515:12Waxing Crescent3Sun
4Mon11:000.88:24-0.46:515:13Waxing Crescent4Mon
5Tue11:200.68:31-0.36:515:14Waxing Crescent5Tue
6Wed6:330.38:08-0.16:515:14First Quarter6Wed
7Thu3:520.46:210.16:525:15First Quarter7Thu
8Fri3:370.71:44-0.16:525:16First Quarter8Fri
9Sat4:011.01:54-0.56:525:17First Quarter9Sat
10Sun4:451.22:35-0.86:525:18Waxing Gibbous10Sun
11Mon5:411.43:24-1.06:525:18Waxing Gibbous11Mon
12Tue6:411.54:18-1.26:525:19Waxing Gibbous12Tue
13Wed7:421.55:14-1.36:525:20Full Moon13Wed
14Thu8:411.46:09-1.26:525:21Full Moon14Thu
15Fri9:361.37:02-1.16:515:22Full Moon15Fri
16Sat10:261.07:48-0.86:515:22Waning Gibbous16Sat
17Sun11:080.78:22-0.66:515:23Waning Gibbous17Sun
18Mon11:360.48:26-0.36:515:24Waning Gibbous18Mon
19Tue3:360.27:230.06:515:25Waning Gibbous19Tue
20Wed2:280.44:210.06:515:26Third Quarter20Wed
21Thu2:380.61:37-0.26:505:27Third Quarter21Thu
22Fri3:090.81:48-0.56:505:27Third Quarter22Fri
23Sat3:500.92:18-0.66:505:28Third Quarter23Sat
24Sun4:381.02:54-0.76:495:29Waning Crescent24Sun
25Mon5:311.03:33-0.86:495:30Waning Crescent25Mon
26Tue6:251.04:13-0.96:495:31Waning Crescent26Tue
27Wed7:161.14:54-0.96:485:32Waning Crescent27Wed
28Thu8:021.15:32-0.86:485:32New Moon28Thu
29Fri8:431.06:06-0.86:475:33New Moon29Fri
30Sat9:210.96:35-0.76:475:34New Moon30Sat
31Sun9:590.86:55-0.66:465:35New Moon31Sun
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 11:17 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