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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 6h 54m at 10:57 pm (0.1 ft)
Next high tide (tomorrow) : 12:51 pm (1.0 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jul 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:251.39:38-0.16:038:00Waning Gibbous1Wed
2Thu11:511.29:560.16:038:00Waning Gibbous2Thu
3Fri12:041.09:580.26:038:00Third Quarter3Fri
4Sat11:280.99:320.36:048:00Third Quarter4Sat
5Sun8:130.88:070.46:048:00Third Quarter5Sun
6Mon6:440.95:040.36:058:00Third Quarter6Mon
7Tue6:251.04:210.16:057:59Waning Crescent7Tue
8Wed6:351.24:340.06:067:59Waning Crescent8Wed
9Thu7:001.45:03-0.26:067:59Waning Crescent9Thu
10Fri7:341.55:39-0.36:077:59Waning Crescent10Fri
11Sat8:131.66:20-0.46:077:59New Moon11Sat
12Sun8:571.77:05-0.56:087:58New Moon12Sun
13Mon9:421.77:51-0.56:087:58New Moon13Mon
14Tue10:291.78:36-0.46:097:58New Moon14Tue
15Wed11:151.69:18-0.26:097:58Waxing Crescent15Wed
16Thu11:591.49:510.06:107:57Waxing Crescent16Thu
17Fri12:351.110:000.26:107:57Waxing Crescent17Fri
18Sat11:490.89:050.56:117:56First Quarter18Sat
19Sun6:110.83:430.46:117:56First Quarter19Sun
20Mon5:301.03:220.16:127:56First Quarter20Mon
21Tue5:401.23:56-0.16:127:55Waxing Gibbous21Tue
22Wed6:121.44:37-0.36:137:55Waxing Gibbous22Wed
23Thu6:531.65:18-0.36:137:54Waxing Gibbous23Thu
24Fri7:361.65:58-0.36:147:54Waxing Gibbous24Fri
25Sat8:201.66:35-0.36:157:53Full Moon25Sat
26Sun9:011.67:09-0.26:157:52Full Moon26Sun
27Mon9:401.57:40-0.16:167:52Full Moon27Mon
28Tue10:151.58:070.06:167:51Full Moon28Tue
29Wed10:481.48:280.16:177:51Waning Gibbous29Wed
30Thu11:181.28:390.26:177:50Waning Gibbous30Thu
31Fri11:431.18:340.46:187:49Waning Gibbous31Fri
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 5:54 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 27% 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 Crescent (27% 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