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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 5h 38m at 4:09 pm (0.0 ft)
Next high tide (tomorrow) : 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 - Jun 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:410.912:030.311:360.55:597:51Third Quarter1Mon
2Tue8:030.93:330.55:597:52Waning Crescent2Tue
3Wed7:051.14:030.15:597:52Waning Crescent3Wed
4Thu7:011.44:49-0.35:587:53Waning Crescent4Thu
5Fri7:271.75:42-0.55:587:53Waning Crescent5Fri
6Sat8:082.06:38-0.75:587:54New Moon6Sat
7Sun8:572.17:36-0.85:587:54New Moon7Sun
8Mon9:492.18:36-0.75:587:55New Moon8Mon
9Tue10:432.09:33-0.65:587:55Waxing Crescent9Tue
10Wed11:331.910:25-0.45:587:55Waxing Crescent10Wed
11Thu12:191.611:06-0.25:587:56Waxing Crescent11Thu
12Fri12:531.311:270.15:587:56First Quarter12Fri
13Sat12:581.011:120.35:587:57First Quarter13Sat
14Sun10:140.89:350.55:587:57First Quarter14Sun
15Mon7:260.95:080.45:587:57First Quarter15Mon
16Tue6:391.14:310.25:587:58Waxing Gibbous16Tue
17Wed6:361.34:46-0.15:597:58Waxing Gibbous17Wed
18Thu6:521.45:12-0.25:597:58Waxing Gibbous18Thu
19Fri7:181.55:44-0.35:597:58Waxing Gibbous19Fri
20Sat7:511.66:20-0.45:597:59Full Moon20Sat
21Sun8:291.76:58-0.45:597:59Full Moon21Sun
22Mon9:081.77:38-0.46:007:59Full Moon22Mon
23Tue9:481.78:17-0.46:007:59Full Moon23Tue
24Wed10:271.78:54-0.46:007:59Waning Gibbous24Wed
25Thu11:051.69:27-0.36:008:00Waning Gibbous25Thu
26Fri11:411.59:55-0.26:018:00Waning Gibbous26Fri
27Sat12:131.310:130.06:018:00Waning Gibbous27Sat
28Sun12:341.110:080.26:018:00Third Quarter28Sun
29Mon9:320.88:560.46:028:00Third Quarter29Mon
30Tue6:130.93:280.36:028:00Third Quarter30Tue
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 11:06 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 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