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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Southwest Pass, Mississippi River, LA.
Next low tide : 10:32 pm (0.3 ft)
Next high tide : in 8h 00m at 12:51 pm (1.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:59 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Jun 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:441.56:33-0.15:597:51Full Moon1Mon
2Tue9:161.67:11-0.25:597:52Full Moon2Tue
3Wed9:511.67:52-0.25:597:52Full Moon3Wed
4Thu10:281.78:35-0.35:587:53Waning Gibbous4Thu
5Fri11:061.69:19-0.25:587:53Waning Gibbous5Fri
6Sat11:451.510:01-0.15:587:54Waning Gibbous6Sat
7Sun12:201.410:370.05:587:54Waning Gibbous7Sun
8Mon12:401.110:580.25:587:54Third Quarter8Mon
9Tue10:570.910:460.45:587:55Third Quarter9Tue
10Wed8:130.96:390.55:587:55Third Quarter10Wed
11Thu7:221.04:170.25:587:56Waning Crescent11Thu
12Fri7:151.24:440.05:587:56Waning Crescent12Fri
13Sat7:311.45:22-0.25:587:56Waning Crescent13Sat
14Sun8:011.56:04-0.35:587:57Waning Crescent14Sun
15Mon8:361.66:46-0.45:587:57New Moon15Mon
16Tue9:141.67:26-0.35:587:57New Moon16Tue
17Wed9:501.68:03-0.35:587:58New Moon17Wed
18Thu10:251.58:37-0.25:597:58Waxing Crescent18Thu
19Fri10:571.49:06-0.15:597:58Waxing Crescent19Fri
20Sat11:251.39:290.05:597:59Waxing Crescent20Sat
21Sun11:441.29:410.15:597:59Waxing Crescent21Sun
22Mon11:431.09:370.35:597:59First Quarter22Mon
23Tue10:160.89:050.46:007:59First Quarter23Tue
24Wed7:400.87:320.46:007:59First Quarter24Wed
25Thu6:470.95:090.36:008:00First Quarter25Thu
26Fri6:381.14:390.16:018:00Waxing Gibbous26Fri
27Sat6:511.24:510.06:018:00Waxing Gibbous27Sat
28Sun7:151.35:16-0.16:018:00Waxing Gibbous28Sun
29Mon7:471.45:48-0.36:018:00Waxing Gibbous29Mon
30Tue8:241.56:23-0.36:028:00Full Moon30Tue
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 5:41 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 38% 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 (38% 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