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

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Southwest Pass, Mississippi River, LA.
Next low tide : in 13m at 7:56 pm (0.4 ft)
Next high tide (tomorrow) : 5:21 am (0.9 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:04 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8760959
Common Questions About Tides

Southwest Pass, Mississippi River, LA Tides - Sep 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:391.36:370.86:367:18Full Moon1Thu
2Fri12:361.01:241.15:290.84:591.06:367:17Waning Gibbous2Fri
3Sat12:111.28:150.66:377:16Waning Gibbous3Sat
4Sun12:271.510:310.46:377:15Waning Gibbous4Sun
5Mon1:041.712:040.26:387:14Third Quarter5Mon
6Tue1:561.91:170.06:387:13Third Quarter6Tue
7Wed2:592.12:23-0.16:397:11Third Quarter7Wed
8Thu4:132.13:24-0.16:397:10Waning Crescent8Thu
9Fri5:342.14:20-0.16:407:09Waning Crescent9Fri
10Sat6:542.05:110.16:407:08Waning Crescent10Sat
11Sun8:081.95:540.36:417:07Waning Crescent11Sun
12Mon9:151.76:250.56:417:05New Moon12Mon
13Tue10:211.56:300.86:427:04New Moon13Tue
14Wed11:341.311:161.15:431.06:427:03New Moon14Wed
15Thu11:041.45:160.96:437:02New Moon15Thu
16Fri11:191.57:080.76:437:01Waxing Crescent16Fri
17Sat11:451.78:430.66:446:59Waxing Crescent17Sat
18Sun10:050.56:446:58Waxing Crescent18Sun
19Mon12:181.811:190.46:456:57Waxing Crescent19Mon
20Tue1:001.912:270.46:456:56First Quarter20Tue
21Wed1:511.91:290.36:466:55First Quarter21Wed
22Thu2:551.92:250.36:466:53First Quarter22Thu
23Fri4:091.93:140.36:476:52First Quarter23Fri
24Sat5:271.93:570.46:476:51Waxing Gibbous24Sat
25Sun6:411.84:330.56:486:50Waxing Gibbous25Sun
26Mon7:511.85:010.66:486:48Waxing Gibbous26Mon
27Tue9:011.75:170.86:496:47Full Moon27Tue
28Wed10:221.510:421.25:081.06:496:46Full Moon28Wed
29Thu12:201.33:560.94:011.26:506:45Full Moon29Thu
30Fri10:171.75:460.76:506:44Full Moon30Fri
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 12:38 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 62% 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 Third Quarter (62% 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